Effect of TDI Channels with Anomalous Noise on the Probability of Detection of Small-Size Objects by FPAs

IF 0.4 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
V. V. Abilov, V. A. Streltsov
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Abstract

The effect of anomalous (with respect to noise power spectral density) TDI channels on the probability of detection of small objects by FPAs is considered. A series of FPA output images simulating the signals of TDI channels with four main types of noise PSDs is generated, the probability of detection of a small object is calculated, and the efficiency of various combinations of linear filters used in intraframe processing is evaluated. It is found that TDI channels with low-frequency noise most significantly affect the probability of detection of a small object, and the successive application of an adaptive recursive filter and a window filter that is quasi-matched with the signal leads to an increase in the probability by 22% even in the presence of 6% anomalous TDI channels in the FPA.

Abstract Image

带有异常噪声的 TDI 信道对 FPA 检测小尺寸物体概率的影响
摘要 研究了异常(与噪声功率谱密度有关)TDI 信道对 FPA 检测小物体概率的影响。生成了一系列模拟具有四种主要噪声 PSD 的 TDI 信道信号的 FPA 输出图像,计算了检测到小物体的概率,并评估了帧内处理中使用的各种线性滤波器组合的效率。结果发现,具有低频噪声的 TDI 信道对检测到小物体的概率影响最大,即使在 FPA 中存在 6% 的异常 TDI 信道,连续使用自适应递归滤波器和与信号准匹配的窗口滤波器也能将概率提高 22%。
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来源期刊
CiteScore
1.00
自引率
20.00%
发文量
170
审稿时长
10.5 months
期刊介绍: Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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