Interpretation depends on {@link #getConstellationType()}. * See {@link GnssStatus#getSvid(int)}. */ public int getSvid() { return mSvid; } /** * Sets the Satellite ID. * @hide */ @TestApi public void setSvid(int value) { mSvid = value; } /** * Gets the constellation type. * *
The return value is one of those constants with {@code CONSTELLATION_} prefix in * {@link GnssStatus}. */ @GnssStatus.ConstellationType public int getConstellationType() { return mConstellationType; } /** * Sets the constellation type. * @hide */ @TestApi public void setConstellationType(@GnssStatus.ConstellationType int value) { mConstellationType = value; } /** * Gets the time offset at which the measurement was taken in nanoseconds. * *
The reference receiver's time from which this is offset is specified by * {@link GnssClock#getTimeNanos()}. * *
The sign of this value is given by the following equation: *
* measurement time = TimeNanos + TimeOffsetNanos
*
* The value provides an individual time-stamp for the measurement, and allows sub-nanosecond * accuracy. */ public double getTimeOffsetNanos() { return mTimeOffsetNanos; } /** * Sets the time offset at which the measurement was taken in nanoseconds. * @hide */ @TestApi public void setTimeOffsetNanos(double value) { mTimeOffsetNanos = value; } /** * Gets per-satellite sync state. * *
It represents the current sync state for the associated satellite. * *
This value helps interpret {@link #getReceivedSvTimeNanos()}. */ public int getState() { return mState; } /** * Sets the sync state. * @hide */ @TestApi public void setState(int value) { mState = value; } /** * Gets a string representation of the 'sync state'. * *
For internal and logging use only. */ private String getStateString() { if (mState == STATE_UNKNOWN) { return "Unknown"; } StringBuilder builder = new StringBuilder(); if ((mState & STATE_CODE_LOCK) != 0) { builder.append("CodeLock|"); } if ((mState & STATE_BIT_SYNC) != 0) { builder.append("BitSync|"); } if ((mState & STATE_SUBFRAME_SYNC) != 0) { builder.append("SubframeSync|"); } if ((mState & STATE_TOW_DECODED) != 0) { builder.append("TowDecoded|"); } if ((mState & STATE_TOW_KNOWN) != 0) { builder.append("TowKnown|"); } if ((mState & STATE_MSEC_AMBIGUOUS) != 0) { builder.append("MsecAmbiguous|"); } if ((mState & STATE_SYMBOL_SYNC) != 0) { builder.append("SymbolSync|"); } if ((mState & STATE_GLO_STRING_SYNC) != 0) { builder.append("GloStringSync|"); } if ((mState & STATE_GLO_TOD_DECODED) != 0) { builder.append("GloTodDecoded|"); } if ((mState & STATE_GLO_TOD_KNOWN) != 0) { builder.append("GloTodKnown|"); } if ((mState & STATE_BDS_D2_BIT_SYNC) != 0) { builder.append("BdsD2BitSync|"); } if ((mState & STATE_BDS_D2_SUBFRAME_SYNC) != 0) { builder.append("BdsD2SubframeSync|"); } if ((mState & STATE_GAL_E1BC_CODE_LOCK) != 0) { builder.append("GalE1bcCodeLock|"); } if ((mState & STATE_GAL_E1C_2ND_CODE_LOCK) != 0) { builder.append("E1c2ndCodeLock|"); } if ((mState & STATE_GAL_E1B_PAGE_SYNC) != 0) { builder.append("GalE1bPageSync|"); } if ((mState & STATE_SBAS_SYNC) != 0) { builder.append("SbasSync|"); } int remainingStates = mState & ~STATE_ALL; if (remainingStates > 0) { builder.append("Other("); builder.append(Integer.toBinaryString(remainingStates)); builder.append(")|"); } builder.setLength(builder.length() - 1); return builder.toString(); } /** * Gets the received GNSS satellite time, at the measurement time, in nanoseconds. * *
For GPS & QZSS, this is: *
Given the highest sync state that can be achieved, per each satellite, valid range * for this field can be: *
* Searching : [ 0 ] : STATE_UNKNOWN
* C/A code lock : [ 0 1ms ] : STATE_CODE_LOCK is set
* Bit sync : [ 0 20ms ] : STATE_BIT_SYNC is set
* Subframe sync : [ 0 6s ] : STATE_SUBFRAME_SYNC is set
* TOW decoded : [ 0 1week ] : STATE_TOW_DECODED is set
* TOW Known : [ 0 1week ] : STATE_TOW_KNOWN set
*
* Note: TOW Known refers to the case where TOW is possibly not decoded over the air but has
* been determined from other sources. If TOW decoded is set then TOW Known must also be set.
*
* Note well: if there is any ambiguity in integer millisecond, {@code STATE_MSEC_AMBIGUOUS} * must be set accordingly, in the 'state' field. * *
This value must be populated if 'state' != {@code STATE_UNKNOWN}. * *
For Glonass, this is: *
Given the highest sync state that can be achieved, per each satellite, valid range for * this field can be: *
* Searching : [ 0 ] : STATE_UNKNOWN
* C/A code lock : [ 0 1ms ] : STATE_CODE_LOCK is set
* Symbol sync : [ 0 10ms ] : STATE_SYMBOL_SYNC is set
* Bit sync : [ 0 20ms ] : STATE_BIT_SYNC is set
* String sync : [ 0 2s ] : STATE_GLO_STRING_SYNC is set
* Time of day decoded : [ 0 1day ] : STATE_GLO_TOD_DECODED is set
* Time of day known : [ 0 1day ] : STATE_GLO_TOD_KNOWN set
*
* Note: Time of day known refers to the case where it is possibly not decoded over the air but
* has been determined from other sources. If Time of day decoded is set then Time of day known
* must also be set.
*
* For Beidou, this is: *
Given the highest sync state that can be achieved, per each satellite, valid range for * this field can be: *
* Searching : [ 0 ] : STATE_UNKNOWN
* C/A code lock : [ 0 1ms ] : STATE_CODE_LOCK is set
* Bit sync (D2) : [ 0 2ms ] : STATE_BDS_D2_BIT_SYNC is set
* Bit sync (D1) : [ 0 20ms ] : STATE_BIT_SYNC is set
* Subframe (D2) : [ 0 0.6s ] : STATE_BDS_D2_SUBFRAME_SYNC is set
* Subframe (D1) : [ 0 6s ] : STATE_SUBFRAME_SYNC is set
* Time of week decoded : [ 0 1week ] : STATE_TOW_DECODED is set
* Time of week known : [ 0 1week ] : STATE_TOW_KNOWN set
*
* Note: TOW Known refers to the case where TOW is possibly not decoded over the air but has
* been determined from other sources. If TOW decoded is set then TOW Known must also be set.
*
* For Galileo, this is: *
* E1BC code lock : [ 0 4ms ] : STATE_GAL_E1BC_CODE_LOCK is set
* E1C 2nd code lock : [ 0 100ms ] : STATE_GAL_E1C_2ND_CODE_LOCK is set
* E1B page : [ 0 2s ] : STATE_GAL_E1B_PAGE_SYNC is set
* Time of week decoded : [ 0 1week ] : STATE_TOW_DECODED is set
* Time of week known : [ 0 1week ] : STATE_TOW_KNOWN set
*
* Note: TOW Known refers to the case where TOW is possibly not decoded over the air but has
* been determined from other sources. If TOW decoded is set then TOW Known must also be set.
*
* For SBAS, this is: *
Given the highest sync state that can be achieved, per each satellite, valid range for * this field can be: *
* Searching : [ 0 ] : STATE_UNKNOWN
* C/A code lock : [ 0 1ms ] : STATE_CODE_LOCK is set
* Symbol sync : [ 0 2ms ] : STATE_SYMBOL_SYNC is set
* Message : [ 0 1s ] : STATE_SBAS_SYNC is set
*/
public long getReceivedSvTimeNanos() {
return mReceivedSvTimeNanos;
}
/**
* Sets the received GNSS time in nanoseconds.
* @hide
*/
@TestApi
public void setReceivedSvTimeNanos(long value) {
mReceivedSvTimeNanos = value;
}
/**
* Gets the error estimate (1-sigma) for the received GNSS time, in nanoseconds.
*/
public long getReceivedSvTimeUncertaintyNanos() {
return mReceivedSvTimeUncertaintyNanos;
}
/**
* Sets the received GNSS time uncertainty (1-Sigma) in nanoseconds.
* @hide
*/
@TestApi
public void setReceivedSvTimeUncertaintyNanos(long value) {
mReceivedSvTimeUncertaintyNanos = value;
}
/**
* Gets the Carrier-to-noise density in dB-Hz.
*
* Typical range: 10-50 db-Hz. * *
The value contains the measured C/N0 for the signal at the antenna input. */ public double getCn0DbHz() { return mCn0DbHz; } /** * Sets the carrier-to-noise density in dB-Hz. * @hide */ @TestApi public void setCn0DbHz(double value) { mCn0DbHz = value; } /** * Gets the Pseudorange rate at the timestamp in m/s. * *
The error estimate for this value is * {@link #getPseudorangeRateUncertaintyMetersPerSecond()}. * *
The value is uncorrected, i.e. corrections for receiver and satellite clock frequency * errors are not included. * *
A positive 'uncorrected' value indicates that the SV is moving away from the receiver. The * sign of the 'uncorrected' 'pseudorange rate' and its relation to the sign of 'doppler shift' * is given by the equation: * *
* pseudorange rate = -k * doppler shift (where k is a constant)
*/
public double getPseudorangeRateMetersPerSecond() {
return mPseudorangeRateMetersPerSecond;
}
/**
* Sets the pseudorange rate at the timestamp in m/s.
* @hide
*/
@TestApi
public void setPseudorangeRateMetersPerSecond(double value) {
mPseudorangeRateMetersPerSecond = value;
}
/**
* Gets the pseudorange's rate uncertainty (1-Sigma) in m/s.
*
* The uncertainty is represented as an absolute (single sided) value. */ public double getPseudorangeRateUncertaintyMetersPerSecond() { return mPseudorangeRateUncertaintyMetersPerSecond; } /** * Sets the pseudorange's rate uncertainty (1-Sigma) in m/s. * @hide */ @TestApi public void setPseudorangeRateUncertaintyMetersPerSecond(double value) { mPseudorangeRateUncertaintyMetersPerSecond = value; } /** * Gets 'Accumulated Delta Range' state. * *
It indicates whether {@link #getAccumulatedDeltaRangeMeters()} is reset or there is a * cycle slip (indicating 'loss of lock'). */ public int getAccumulatedDeltaRangeState() { return mAccumulatedDeltaRangeState; } /** * Sets the 'Accumulated Delta Range' state. * @hide */ @TestApi public void setAccumulatedDeltaRangeState(int value) { mAccumulatedDeltaRangeState = value; } /** * Gets a string representation of the 'Accumulated Delta Range state'. * *
For internal and logging use only. */ private String getAccumulatedDeltaRangeStateString() { if (mAccumulatedDeltaRangeState == ADR_STATE_UNKNOWN) { return "Unknown"; } StringBuilder builder = new StringBuilder(); if ((mAccumulatedDeltaRangeState & ADR_STATE_VALID) == ADR_STATE_VALID) { builder.append("Valid|"); } if ((mAccumulatedDeltaRangeState & ADR_STATE_RESET) == ADR_STATE_RESET) { builder.append("Reset|"); } if ((mAccumulatedDeltaRangeState & ADR_STATE_CYCLE_SLIP) == ADR_STATE_CYCLE_SLIP) { builder.append("CycleSlip|"); } int remainingStates = mAccumulatedDeltaRangeState & ~ADR_ALL; if (remainingStates > 0) { builder.append("Other("); builder.append(Integer.toBinaryString(remainingStates)); builder.append(")|"); } builder.deleteCharAt(builder.length() - 1); return builder.toString(); } /** * Gets the accumulated delta range since the last channel reset, in meters. * *
The error estimate for this value is {@link #getAccumulatedDeltaRangeUncertaintyMeters()}. * *
The availability of the value is represented by {@link #getAccumulatedDeltaRangeState()}. * *
A positive value indicates that the SV is moving away from the receiver. * The sign of {@link #getAccumulatedDeltaRangeMeters()} and its relation to the sign of * {@link #getCarrierPhase()} is given by the equation: * *
* accumulated delta range = -k * carrier phase (where k is a constant)
*/
public double getAccumulatedDeltaRangeMeters() {
return mAccumulatedDeltaRangeMeters;
}
/**
* Sets the accumulated delta range in meters.
* @hide
*/
@TestApi
public void setAccumulatedDeltaRangeMeters(double value) {
mAccumulatedDeltaRangeMeters = value;
}
/**
* Gets the accumulated delta range's uncertainty (1-Sigma) in meters.
*
* The uncertainty is represented as an absolute (single sided) value. * *
The status of the value is represented by {@link #getAccumulatedDeltaRangeState()}. */ public double getAccumulatedDeltaRangeUncertaintyMeters() { return mAccumulatedDeltaRangeUncertaintyMeters; } /** * Sets the accumulated delta range's uncertainty (1-sigma) in meters. * *
The status of the value is represented by {@link #getAccumulatedDeltaRangeState()}. * * @hide */ @TestApi public void setAccumulatedDeltaRangeUncertaintyMeters(double value) { mAccumulatedDeltaRangeUncertaintyMeters = value; } /** * Returns {@code true} if {@link #getCarrierFrequencyHz()} is available, {@code false} * otherwise. */ public boolean hasCarrierFrequencyHz() { return isFlagSet(HAS_CARRIER_FREQUENCY); } /** * Gets the carrier frequency of the tracked signal. * *
For example it can be the GPS central frequency for L1 = 1575.45 MHz, or L2 = 1227.60 MHz, * L5 = 1176.45 MHz, varying GLO channels, etc. If the field is not set, it is the primary * common use central frequency, e.g. L1 = 1575.45 MHz for GPS. * * For an L1, L5 receiver tracking a satellite on L1 and L5 at the same time, two raw * measurement objects will be reported for this same satellite, in one of the measurement * objects, all the values related to L1 will be filled, and in the other all of the values * related to L5 will be filled. * *
The value is only available if {@link #hasCarrierFrequencyHz()} is {@code true}. * * @return the carrier frequency of the signal tracked in Hz. */ public float getCarrierFrequencyHz() { return mCarrierFrequencyHz; } /** * Sets the Carrier frequency in Hz. * @hide */ @TestApi public void setCarrierFrequencyHz(float carrierFrequencyHz) { setFlag(HAS_CARRIER_FREQUENCY); mCarrierFrequencyHz = carrierFrequencyHz; } /** * Resets the Carrier frequency in Hz. * @hide */ @TestApi public void resetCarrierFrequencyHz() { resetFlag(HAS_CARRIER_FREQUENCY); mCarrierFrequencyHz = Float.NaN; } /** * Returns {@code true} if {@link #getCarrierCycles()} is available, {@code false} otherwise. */ public boolean hasCarrierCycles() { return isFlagSet(HAS_CARRIER_CYCLES); } /** * The number of full carrier cycles between the satellite and the receiver. * *
The reference frequency is given by the value of {@link #getCarrierFrequencyHz()}. * *
The value is only available if {@link #hasCarrierCycles()} is {@code true}. */ public long getCarrierCycles() { return mCarrierCycles; } /** * Sets the number of full carrier cycles between the satellite and the receiver. * @hide */ @TestApi public void setCarrierCycles(long value) { setFlag(HAS_CARRIER_CYCLES); mCarrierCycles = value; } /** * Resets the number of full carrier cycles between the satellite and the receiver. * @hide */ @TestApi public void resetCarrierCycles() { resetFlag(HAS_CARRIER_CYCLES); mCarrierCycles = Long.MIN_VALUE; } /** * Returns {@code true} if {@link #getCarrierPhase()} is available, {@code false} otherwise. */ public boolean hasCarrierPhase() { return isFlagSet(HAS_CARRIER_PHASE); } /** * Gets the RF phase detected by the receiver. * *
Range: [0.0, 1.0]. * *
This is the fractional part of the complete carrier phase measurement. * *
The reference frequency is given by the value of {@link #getCarrierFrequencyHz()}. * *
The error estimate for this value is {@link #getCarrierPhaseUncertainty()}. * *
The value is only available if {@link #hasCarrierPhase()} is {@code true}. */ public double getCarrierPhase() { return mCarrierPhase; } /** * Sets the RF phase detected by the receiver. * @hide */ @TestApi public void setCarrierPhase(double value) { setFlag(HAS_CARRIER_PHASE); mCarrierPhase = value; } /** * Resets the RF phase detected by the receiver. * @hide */ @TestApi public void resetCarrierPhase() { resetFlag(HAS_CARRIER_PHASE); mCarrierPhase = Double.NaN; } /** * Returns {@code true} if {@link #getCarrierPhaseUncertainty()} is available, {@code false} * otherwise. */ public boolean hasCarrierPhaseUncertainty() { return isFlagSet(HAS_CARRIER_PHASE_UNCERTAINTY); } /** * Gets the carrier-phase's uncertainty (1-Sigma). * *
The uncertainty is represented as an absolute (single sided) value. * *
The value is only available if {@link #hasCarrierPhaseUncertainty()} is {@code true}. */ public double getCarrierPhaseUncertainty() { return mCarrierPhaseUncertainty; } /** * Sets the Carrier-phase's uncertainty (1-Sigma) in cycles. * @hide */ @TestApi public void setCarrierPhaseUncertainty(double value) { setFlag(HAS_CARRIER_PHASE_UNCERTAINTY); mCarrierPhaseUncertainty = value; } /** * Resets the Carrier-phase's uncertainty (1-Sigma) in cycles. * @hide */ @TestApi public void resetCarrierPhaseUncertainty() { resetFlag(HAS_CARRIER_PHASE_UNCERTAINTY); mCarrierPhaseUncertainty = Double.NaN; } /** * Gets a value indicating the 'multipath' state of the event. */ @MultipathIndicator public int getMultipathIndicator() { return mMultipathIndicator; } /** * Sets the 'multi-path' indicator. * @hide */ @TestApi public void setMultipathIndicator(@MultipathIndicator int value) { mMultipathIndicator = value; } /** * Gets a string representation of the 'multi-path indicator'. * *
For internal and logging use only.
*/
private String getMultipathIndicatorString() {
switch(mMultipathIndicator) {
case MULTIPATH_INDICATOR_UNKNOWN:
return "Unknown";
case MULTIPATH_INDICATOR_DETECTED:
return "Detected";
case MULTIPATH_INDICATOR_NOT_DETECTED:
return "NotDetected";
default:
return " The value is only available if {@link #hasSnrInDb()} is {@code true}.
*/
public double getSnrInDb() {
return mSnrInDb;
}
/**
* Sets the Signal-to-noise ratio (SNR) in dB.
* @hide
*/
@TestApi
public void setSnrInDb(double snrInDb) {
setFlag(HAS_SNR);
mSnrInDb = snrInDb;
}
/**
* Resets the Signal-to-noise ratio (SNR) in dB.
* @hide
*/
@TestApi
public void resetSnrInDb() {
resetFlag(HAS_SNR);
mSnrInDb = Double.NaN;
}
/**
* Returns {@code true} if {@link #getAutomaticGainControlLevelDb()} is available,
* {@code false} otherwise.
*/
public boolean hasAutomaticGainControlLevelDb() {
return isFlagSet(HAS_AUTOMATIC_GAIN_CONTROL);
}
/**
* Gets the Automatic Gain Control level in dB.
*
* AGC acts as a variable gain amplifier adjusting the power of the incoming signal. The AGC
* level may be used to indicate potential interference. When AGC is at a nominal level, this
* value must be set as 0. Higher gain (and/or lower input power) shall be output as a positive
* number. Hence in cases of strong jamming, in the band of this signal, this value will go more
* negative.
*
* Note: Different hardware designs (e.g. antenna, pre-amplification, or other RF HW
* components) may also affect the typical output of of this value on any given hardware design
* in an open sky test - the important aspect of this output is that changes in this value are
* indicative of changes on input signal power in the frequency band for this measurement.
* The value is only available if {@link #hasAutomaticGainControlLevelDb()} is {@code true}
*/
public double getAutomaticGainControlLevelDb() {
return mAutomaticGainControlLevelInDb;
}
/**
* Sets the Automatic Gain Control level in dB.
* @hide
*/
@TestApi
public void setAutomaticGainControlLevelInDb(double agcLevelDb) {
setFlag(HAS_AUTOMATIC_GAIN_CONTROL);
mAutomaticGainControlLevelInDb = agcLevelDb;
}
/**
* Resets the Automatic Gain Control level.
* @hide
*/
@TestApi
public void resetAutomaticGainControlLevel() {
resetFlag(HAS_AUTOMATIC_GAIN_CONTROL);
mAutomaticGainControlLevelInDb = Double.NaN;
}
public static final Creator