#Satellite uplink and downlink update

Noise temperature (K) - Allows you to select from four effective receiver system noise temperatures. The second element represents the receive antenna diameter and is used to calculate the gain in the Rx Dish Antenna Gain block. Transmit and receive antenna diameters (m) - The first element in the vector represents the transmit antenna diameter and is used to calculate the gain in the Tx Dish Antenna Gain block. Changing this parameter updates the Free Space Path Loss block. The default setting is 35600.įrequency (MHz) - Carrier frequency of the link. Satellite altitude (km) - Distance between the satellite and the ground station.

#Satellite uplink and downlink update

To make changes to the parameters as the model is running, apply them in the dialog, then update the model via ctrl+d. Rectangular QAM Demodulator Baseband - Demaps the data stream from the 16-QAM constellation space.ĭouble-click the block labeled Model Parameters to view the parameter settings for the model. I/Q Imbalance Compensator - Estimates and removes I/Q imbalance from the signal by a blind adaptive algorithm.ĭoppler Correction - Uses the Carrier Synchronizer block to compensate for the carrier frequency offset due to Doppler. Raised Cosine Receive Filter - Applies a matched filter to the modulated signal using the square root raised cosine pulse shape.ĭC Blocker - Compensates for the DC offset in the I/Q Imbalance block.ĪGC - Sets the signal power to a desired level.

LNA (Low Noise Amplifier)- Applies low noise amplifier gain. I/Q Imbalance - Introduces DC offset, amplitude imbalance, or phase imbalance to the signal. Phase Noise - Introduces random phase perturbations that result from 1/f or phase flicker noise. Receiver Thermal Noise (Satellite Receiver System Temp) - Adds white Gaussian noise that represents the effective system temperature of the receiver. Gain (Rx Dish Antenna Gain) - Applies gain of the receiver parabolic dish antenna.