In an example, a radar system includes a signal generator to generate frequency modulated continuous wave (FMCW) chirp signals; a digital signal processor (DSP); a memory; N transmitters, where N≥2; N phase shifters coupled between the signal generator and the N transmitters, and a temperature sensor. Each of the N phase shifters is to be programmed with a respective base phase shift, which is different for each of the N phase shifters, and each of the N phase shifters is further to be programmed with an initial offset phase shift. The DSP is configured to, in response to ambient temperature measured by the temperature sensor, adjust the initial offset phase shift based on temperature-dependent code offset information stored in the memory.