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Report Style: Link Information Detailed

Provides detailed information on the link budget of a communications system.

Data Providers:Link Information , Receiver Information , Transmitter Information

Availability: Reports

Number of Sections: 3

Section 1

Data Provider:Transmitter Information

Column Listing

ColumnColumn NameElementTypeDimensionDescription
1Transmitter NameTransmitter NameTextUnitlessThe transmitter name is the path and name of the transmitter object(s) in the CommSystem.
2Transmitter IDTransmitter IDIntegerUnitlessTransmitter ID refers to the ID of the transmitter(s) in the CommSystem.

Section 2

Data Provider:Receiver Information

Column Listing

ColumnColumn NameElementTypeDimensionDescription
1Receiver NameReceiver NameTextUnitlessThe receiver name is the path and name of the receiver object(s) in the CommSystem.
2Receiver IDReceiver IDIntegerUnitlessReceiver ID refers to the ID of the receiver(s) in the CommSystem.

Section 3

Data Provider:Link Information

Column Listing

ColumnColumn NameElementTypeDimensionDescription
1TimeTimeReal Number or TextDateTime.
2Link To IDLink To IDIntegerUnitlessRefers to the ID of the transmitter in the link analysis.
3Xmtr PowerXmtr PowerReal NumberPowerThe RF power output of the transmitter as measured at the input to the antenna. This is a user selectable value.
4Xmtr GainXmtr GainReal NumberRatioThe antenna gain of the transmitter which is dependent on the antenna type selected. For transmitter models that do not have an antenna model, this is a user defined value. For the simple source transmitter, 0 dB is reported since the simple source transmitter is modeled as an isotropic radiator.
5EIRPEIRPReal NumberPowerThe effective isotropic radiated power in the link direction. This value is the product of the transmitter power and the transmitter gain in the link direction with the inclusion of user defined post transmit gains and losses.
6Xmtr Azimuth - PhiXmtr Azimuth - PhiReal Number or TextAngleThe transmitter azimuth (Phi) is the angle between the transmitter body +x axis and the x-y projection of the link vector.
7Xmtr Elevation - ThetaXmtr Elevation - ThetaReal Number or TextAngleThe transmitter elevation (Theta) is the angle between the transmitter antenna bore-sight vector and the link vector.
8RangeRangeReal NumberDistanceThe range (i.e., distance between the primary and secondary object) at the given time.
9Rcvr Azimuth - PhiRcvr Azimuth - PhiReal Number or TextAngleThe receiver azimuth (Phi) is the angle between the receiver body +x axis and the x-y projection of the link vector.
10Rcvr Elevation - ThetaRcvr Elevation - ThetaReal Number or TextAngleThe receiver elevation (Theta) is the angle between the receiver antenna bore-sight vector and the link vector.
11Rcvd. FrequencyRcvd. FrequencyReal NumberFrequencyThe received frequency is the frequency that the receiver is tuned to in order to communicate with the transmitter. This frequency may be auto-tracked or entered by the user in the receiver properties.
12Rcvd. Iso. PowerRcvd. Iso. PowerReal NumberPowerReceived isotropic power is the power at the receiver before the pre-receive gains/losses and the receiver antenna gain added (in dBW). It is equal to the EIRP with all the channel losses as well as the bandwidth overlap applied.
13Carrier Power at Rcvr InputCarrier Power at Rcvr InputReal NumberPowerCarrier Power at Rcvr Input is the power at the receiver after the receiver antenna gain added (in dBW). It is equal to the EIRP with all the channel losses as well as the bandwidth overlap and receiver gain applied.
14Flux DensityFlux DensityReal NumberPowerFluxDensityThe power from the desired transmitter crossing a unit area normal to the direction of wave propagation.
15Rcvr GainRcvr GainReal NumberRatioReceiver Gain is the antenna gain (in dBi) of the receiver which is dependent on the antenna type used.
16Free Space LossFree Space LossReal NumberRatioLoss due to propagation through free space.
17Atmos LossAtmos LossReal NumberRatioLoss calculated by the selected atmosphere model.
18Rain LossRain LossReal NumberRatioLoss calculated by the selected rain model.
19CloudsFog LosssCloudsFog LossReal NumberRatioLoss calculated by the Clouds and Fog model.
20TropoScintill LossTropoScintill LossReal NumberRatioLoss calculated by the troposphere Scintillation model.
21Prop LossProp LossReal NumberRatioThe total propagation loss computed across all enabled propagation models.
22TrainTrainReal NumberTemperatureTrain is the antenna noise temperature component attributed to the rain model.
23TatmosTatmosReal NumberTemperatureTatmos is the antenna noise temperature component attributed to the gaseous absorption model.
24TcloudsFogTcloudsFogReal NumberTemperatureThe noise temperature from the Cloud and Fog model.
25TtropoScintillTtropoScintillReal NumberTemperatureThe noise temperature from the Troposhperic Scintillation model.
26TsunTsunReal NumberTemperatureTsun is the antenna noise temperature component attributed to the sun.
27TearthTearthReal NumberTemperatureTearth is the antenna noise temperature component attributed to the earth. This is applicable only to receivers not on the ground.
28TcosmicTcosmicReal NumberTemperatureTcosmic is the antenna noise temperature component attributed to the cosmic background. This is applicable only to receivers not on the ground.
29TotherTotherReal NumberTemperatureTother is the antenna noise temperature component attributed to other antenna noise sources.
30TantennaTantennaReal NumberTemperatureTantenna is the antenna noise temperature which is the sum of all the noise source components.
31TequivTequivReal NumberTemperatureThe equivalent system temperature is specified by the user as a constant value or computed at each time step from the receiver system temperature parameters defined by the user.
32g/Tg/TReal NumberGainTempRatioG/T = (Receiver Gain)/(System Temperature at the Receiver). The ratio of the receive antenna gain G to the total system temperature T is the "figure of merit" for the receiver (in dB/K). The figure of merit is independent of the point where it is calculated. However, the gain and system temperature must be specified at the same point.
33C/NoC/NoReal NumberSpectralDensityThe carrier to noise density ratio (C/No) where C is the carrier power and No = kT (Boltzmann's constant x system temperature) is the noise density. It is equivalent to C/N with a normalized Bandwidth (B=1).
34C/(No+Io)C/(No+Io)Real NumberSpectralDensityThe carrier to noise-plus-interference density ratio (C/(No+Io)), where C is the carrier power, No = kT (Boltzmann's constant * system temperature), and Io = interference power spectral density.
35BandwidthBandwidthReal NumberBandwidthBandwidth is the Receiver Bandwidth.
36Bandwidth OverlapBandwidth OverlapReal NumberRatioThe bandwidth overlap factor is the fraction (between 0 and 1) of transmitted power which is contained within the receiver's bandwidth. The amount of power received by the receiver is equal to the transmitted EIRP multiplied by the bandwidth overlap factor and taking into account any propagation losses.
37Pol. Rel. AnglePol. Rel. AngleReal Number or TextAngleThe angle corresponding to the relative mismatch between the transmitted signal polarization and the receiver polarization.
38Polarization EfficPolarization EfficReal NumberRatioThe polarization match between the transmitted signal polarization and the receiving antenna (or in case of Simple and Medium models implied antenna) polarization. It is computed on a scale of 0 - - 1. The value of 1.0 represents the perfect match between the transmitter and the receiver polarizations. On the opposite end of the scale, the value of 0.0 represents a perfect mismatch. STK also provides an option to model Cross Polarization Leakage value. The polarization mismatch value can not drop below the user specified Cross Pol Leakage value.
39C/NC/NReal NumberRatioThe carrier to noise ratio (C/N) where C is the carrier power and N = kTB (Boltzmann's constant x system temperature x bandwidth) is the noise power.
40C/(N+I)C/(N+I)Real NumberRatioThe carrier to noise-plus-interference ratio (C/(N+I)), where C is the carrier power, N = kTB (Boltzmann's constant * system temperature * bandwidth), and I = interference power.
41Eb/NoEb/NoReal NumberRatioThe energy per bit to noise ratio (Eb/No) where Eb is the energy per bit and No = kT (Boltzmann's constant * system temperature).
42Eb/(No+Io)Eb/(No+Io)Real NumberRatioThe energy per bit to noise-plus-interference ratio (Eb/(No+Io)), where Eb is the energy per bit, No = kT (Boltzmann's constant * system temperature), and Io = interference power spectral density.
43BERBERReal NumberUnitlessBit Error Rate (BER) is the probability that a bit is in error (i.e. a zero is transmitted but a one is received). The BER is the number of bits in error divided by the total number of bits sent. STK uses table lookup from a .mod file to extract a BER given an Eb/No. STK interpolates the table as necessary to determine the appropriate bit error rate for a particular bit energy level. If the bit energy is smaller than the first value in the table, the bit error rate for the first value is used. If the bit energy is larger than the last value in the table, a default bit error rate of 1.0e-30 is used to indicate no errors.
44BER+IBER+IReal NumberUnitlessBit error rate in the presence of interference (BER+I) is the probability that a bit is in error (i.e. a zero is transmitted but a one is received) in the interference environment. The BER+I is the number of bits in error divided by the total number of bits sent. STK uses table lookup from a .mod file to extract a BER+I given an Eb/(No+Io). STK interpolates the table as necessary to determine the appropriate bit error rate for a particular bit energy level. If the bit energy is smaller than the first value in the table, the bit error rate for the first value is used. If the bit energy is larger than the last value in the table, a default bit error rate of 1.0e-30 is used to indicate no errors.
45C/IC/IReal NumberRatioIn the Interference Information data provider, C/I is the carrier power from the desired signal over the individual interferer power. Note that the Link Information data provider defines C/I as the carrier power from the desired signal over the sum of all interferer powers. If only one interferer is part of the CommSystem, the two data providers will report the same value for C/I.
46DeltaT/TDeltaT/TReal NumberRatioThe ratio of interference power spectral density Io and receiver noise spectral density No.
47Pwr Flux DensityPwr Flux DensityReal NumberPowerFluxDensityThe interference power from an individual interference source, crossing a unit area normal to the direction of wave propagation and computed over a reference bandwidth of either 1 MHz, 40 kHz, 4 kHz, or 1 Hz. See "Power Flux Density Technical Notes".