ABSTRACT
The choice of radar waveform determines several fundamental radar systems performance metrics, such as the signal-to-noise ratio (SNR), the range/Doppler resolution, the ambiguities in range/Doppler, and range–Doppler coupling. Major waveform attributes contributing to radar performance include pulse duration, bandwidth, amplitude, and frequency/phase modulation. A conventional matched filter produces the maximum achievable SNR at its output when the interference spectrum is white, e.g. white noise. Although multicarrier modulations have been used in military communications systems since the late 1950s, multicarrier phase-coded for pulse radar was first introduced by Levanon in 2000. Multicarrier phase-coded signal uses Nc subcarriers to transmit Nc phase sequences simultaneously, with each sequence containing phase-modulated bits.
