I'm trying to understand what is the "phase coded modulation" and how does it work.
As far as I know, Although the linear frequency modulated (LFM) waveform continues to be the workhorse of modern radars, there is growing interest in the use of phase-coded (PC) waveforms. Phase coding can be used to reduce radio frequency interference (RFI) between adjacent radars and make the waveform less vulnerable to exploitation, and more robust to interference.
and I'm not a familiar with like these radio frequency engineering. So.
Is the Phase modulation same "phase coded modulation"? I'm confused that because there are several types modulation way in https://kr.mathworks.com/help/comm/ug/digital-modulation.html#fp45657
Kind of Modulation Amplitude modulation Phase modulation Frequency modulation Continuous phase modulation Trellis-coded modulation
But I can't find anywhere about Phase coded modulation.
Would you help me to understand what is the "phase coded modulation" and how does it work with very very simple example for referencing?