Buffer Sample Size Control For Variable Chirp Radar

A radar system, comprising:

• an analog front end (AFE) including an amplifier in a receive path coupled between at least one antenna and at least one analog-to digital converter (ADC), and a power amplifier in a transmit path coupled to drive said antenna or another antenna;
• said transmit path including a waveform generator for generating a waveform from received waveform data from a first signal processor or a second signal processor, said waveform generator having an output coupling said waveform to an input of said power amplifier;
• determining a Greatest Common Divisor (GCD) across all of a plurality of chirps in a radar signal frame (frame) programmed to be used, and
• for each said frame, dynamically controlling a size for said samples (sample size) for said elastic buffer to be equal to said GCD for reading samples from one of the memory blocks and writing samples to another of said memory blocks throughout all chirps in said frame, wherein each said chirp having more samples than said GCD is divided into sub-chirps having 2 or more increments equal to said GCD.