In application,t h e acquired target and background by a ATR system are always changed temporarily, causing the disaccord of the reference and acquired target and the degradation o f correlation SNR.
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- 但在实际应用中,ATR系统所获取的外场的目标与背景总是处于随时间不断变化的条件下,与系统所存储的参考目标通常都不会一致,从而导致相关识别SNR劣化。