Experimental Evaluation of SZ(8/64) Phase Coding with Censoringfor Range-Velocity Ambiguity Mitigation

摘要

The Doppler Dilemma or range-velocity foldingof echoes from uniformly spaced transmit pulse trainsof weather radar poses a fundamental limit on radar dataquality: there is a limited unambiguous range for echosand there is a maximum unambiguous velocity. The radarpulse repetition time may be adjusted to increase either theunambiguous range or the maximum unambiguous velocitybut the other necessarily will decrease. Phase codingof the transmit pulses is one technique that can mitigatethe Doppler Dilemma. Experimental results using S-Pol,NCAR's research S-Band radar, illustrate the technique.