バーストデジタル相関器によるLDVの信号処理 : BDCとBSAの性能比較シミュレーション

抄録

In the evaluation of LDA signal processing, numerical simulation experiments were carried out. The burst digital correlation (BDC) and the burst spectrum analysis (BSA) were examined and compared with each other. The simulation results show that the BDC can process Doppler signals of SNR above -12 dB while a limit of -10 dB was found for the BSA. A bandpass filter was used. The use of the filter extends the SNR limit of the the BDC by 3 dB. A coincidence circuit can improve the performance of the BDC in the correlation procedure. The present computer simulation is found to be valuable for the evaluation of LDA processors and the prediction of their performance.