This modification had a significant effect on the false alarm rate.

此修改对假警报率有很大的影响。

youdao

A new multi-threshold frequency domain constant false alarm rate detection algorithm for radar fuse was presented.

提出了一种新的雷达引信多门限频域恒虚警率检测算法。

youdao

The simulation result shows that VPSD is a kind of constant false alarm rate detector, which can detect HFM signal effectively in low SNR, and can adapt to the Doppler mismatch very well.

仿真结果表明，周期斜率方差检测器是一种恒虚警概率检测器，在较低信噪比下可有效检测双曲调频信号，并对多普勒失配有很好的适配性。

youdao

Fido can pick up the smell of TNTvapor at concentrations of just a few parts per trillion, and it was the first sensor to find buried mines at a level comparable to dog performance, with a false-alarm rate of less than 5%.

FORBES: A Nose For Bombs