The following figure shows the transmitter subsystem. However, similar to the first example, the transmitter and receiver subsystems are now built with RF Blockset blocks. Once executed, the model shows the estimated range and speed values that matches the distance and relative speed of the target car. At the top level, the model is similar to what gets built from Phased Array System Toolbox. However, this model uses a triangle sweep waveform instead so the system can estimate range and speed simultaneously. The second example is adapted from Automotive Adaptive Cruise Control Using FMCW and MFSK Technology (Radar Toolbox). They’ve got a few examples on Twitter, like brute-forcing an old garage door. This gives the engineer some knowledge regarding the system's performance under different situations. We’ve been looking through all the material we can find on FISSURE, and it appears to be an RF hacker’s dream come true. If one sets the IP3 of the transmitter to 70 dB and runs the simulation again, the peak corresponding to the target is no longer as dominant. In real applications, the amplifier will suffer many nonlinearities. For example, the simulation result shown above assumes a perfect power amplifier. With these changes, the model is capable of simulating RF behaviors. From the diagram itself, the model below looks identical to the model shown in that example. The first model is adapted from example Simulating Test Signals for a Radar Receiver in Simulink which simulates a monostatic pulse radar with one target. The following sections show two examples of incorporating RF Blockset modeling capability in radar systems built with Phased Array System Toolbox. One advantage of modeling the system in Simulink is the capability of performing multidomain simulations. A popular candidate for such a component is the RF front end. In many cases, once the system model is built, the next step could be adding more fidelity in different components. data sparameters ( passive.s2p ) s sparameters (data,75) p smithplot (s,1,1, GridType, ZY ) Use the data cursor icon in the toolbar to insert a cursor on your smith plot chart. Several examples, such as Simulating Test Signals for a Radar Receiver in Simulink and Automotive Adaptive Cruise Control Using FMCW and MFSK Technology (Radar Toolbox) have shown that one can build end-to-end radar systems in Simulink using Phased Array System Toolbox™. Plot the Smith plot of S11 of s-parameter data file using an impedance of 75 ohms. Monostatic Radar with One Target: slexMonostaticRadarRFExample.slxįMCW Radar Range and Speed Estimation: slexFMCWRFExample.slx
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