Vaughan J M, Callan R D, Bowdle D A, Rothermel J
Appl Opt. 1989 Aug 1;28(15):3008-14. doi: 10.1364/AO.28.003008.
The operation of a surface acoustic wave spectrum analyser and digital integrator is reviewed. Expressions are derived for signal to noise ratio in the measured voltage spectrum with an approximation for the general case and rigorous treatment for the low signal case. A previous calibration study is re-evaluated to provide a final calibration for the atmospheric backscatter data accumulated by the airborne LATAS (laser true airspeed) coherent laser radar system.
回顾了表面声波频谱分析仪和数字积分器的操作。推导了测量电压频谱中信噪比的表达式，对一般情况进行了近似处理，对低信号情况进行了严格处理。对之前的校准研究进行了重新评估，以便为机载LATAS（激光真实空速）相干激光雷达系统积累的大气后向散射数据提供最终校准。
