The inputs are the baseband raw data and 8 parameters that describe the sar sampling frequency, prf, range chirp bandwidth, etc. Name is a property name, and value is the corresponding value. Rangedopplerresponse name,value creates a rangedoppler response object, h, with additional options specified by one or more name,value pair arguments. You can input two types of data inphase and quadrature iq data and response data. Call the step method to compute the range, using the properties you specify for the phased. To compute the detections for a rangeresponse or rangedoppler cube. Phased array system toolbox provides algorithms and apps for the design, simulation, and analysis of sensor array systems in radar, wireless communication, ew, sonar, and medical imaging applications. Learn more about radar dsp phased array system toolbox. The phased array system toolbox includes a system object and simulink block for rangedoppler processing. The map is a 2d image of response intensity as a function of range and or speed.
It has been successfully tested with lband airborne sar data, provided it has low squint. Once the echo is created in the echo generation program, it is then read into matlab in order for it to go through the range doppler algorithm rda and then output the final sar image. This function implements basic rangedoppler algorithm to focus raw sar data. Rangedopplerresponsename,value creates a rangedoppler response object, h, with additional options specified by one or more name,value pair arguments. The processing of the target return indicates a doppler shift of 100 hz. The columns in this matrix correspond to separate, consecutive pulses.
Processing sar data using range doppler and chirp scaling. Range doppler and chirp scaling comparison these experiments have proven to me that sar processing algorithms has to be tailored for certain data and certain application. Sar processing is a 2d filter, but the energy is focused along a single hyperbolic contour. Rangedopplerscope system object creates a scope for viewing a range response map. The object calculates the rangedoppler response of the input data. The idea is to flatten the contour using a process called rcmc.
Useful for sar imaging processing wellknown algorithm to form the radar image both to processing in range and azimuth direction. Range and doppler estimation, rangedoppler and rangeangle processing, and fmcw range estimation. Phased array system toolbox documentation mathworks italia. Rangedoppler response matlab mathworks deutschland. The dechirped target echo has a beat frequency of 1 khz. Range cell migration correction rcmc in doppler domain.
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