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给出了一种对经典联合变换相关器进行相位编码和幅值调节的新方法 ,使联合变换相关器具有优化的相关输出信号和很强的抗干扰能力 .在相位编码幅值调节联合变换相关器中 ,输入的待识别信号首先通过相位模板进行相位编码 ,然后对联合功率谱进行幅值调节滤波 .在进行幅值调节滤波时采用了增强型幅值调节滤波器 ,其调节因子可根据输信号的噪音干扰情况进行调节变化 .相位编码幅值调节有效地祛除了多目标识别联合变换相关器的冗余信号 ,可广泛的应用于多目标识别 .
A new method of phase-encoding and amplitude-adjusting the classical joint transform correlator is proposed, which makes the joint transform correlator have optimized correlation output signal and strong anti-jamming ability.At the phase encoding amplitude modulation joint transform correlation The input signal to be identified is first phase encoded by the phase mask and then the combined power spectrum is amplitude adjusted and filtered.The amplitude adjustment filter is used with an enhanced amplitude adjustment filter whose adjustment factor can be adjusted according to the input The noise of signal is adjusted and adjusted.The amplitude modulation of phase encoding effectively eliminates the redundant signal of the joint transform correlator of multi-target recognition and can be widely used in multi-target recognition.