signal detection probability

Detection probability and false alarm probability are determined by the threshold of signal processing subsystem. Therefore, tracker performance, which is a function of detection probability and false alarm probability, depends on detection thresholds.

跟踪性能是检测概率和虚警概率的函数，而检测概率和虚警概率决定信号检测门限，因此，门限的选择直接影响跟踪系统性能。

Based on some reasonable hypothesizes, the factors influencing the detection probability were deduced, including the target size, the size of the sampling node which contains the target, the signal-noise ratio of the input image and the uniformity of the target.

在一定的假设条件下，从理论上推导出了模型中影响小目标预检测概率的各个因素，包括目标大小、目标所在采样节点的大小、输入图像信噪比和目标均匀性参数等。

Finally, by making use of the recursive formula versus the probability of false alarm with the signal to noise ratio as parameter some results of the probability of detection is computed and shown in the figure.

用该递推算法公式计算了以虚警概率和信噪比为参量的检测概率部分结果并图示。

The results of analysis show that: the average probability of error for digital data communication in slow Rayleigh fading channel is less one half magnitude than the optimized threshold detection with fading signal at same mean SNR.

结果表明，在Rayleigh慢衰落信道上采用这种检测器，相对于工作此信道上的最佳固定门限检测器，在不同输入信噪比情况下，其平均误码率约有半个数量级的改善。

The relation of detection probability, false alarm probability and signal noise ratio in IRST are discussed in the paper, and a novel missile warning receiver's ( MWS) example designed by the model is given.

文章讨论了红外搜索跟踪系统中探测概率、虚警概率和信噪比三者之间的关系，给出了一个在此模型基础之上的实际地面告警系统的探测概率计算实例。

The basis of the theory model of laser radar for direct detection is built on that the maximal detectable distance is decided by certain detection probability, false-alarm rate, signal noise ratio and threshold noise ratio.

从虚警概率、探测概率、信噪比和阈值噪声比决定最大探测距离的这一角度阐述建立直接探测激光雷达模型；假设在直接检测方式下，探测器噪声可以用高斯概率密度函数表示；