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Measurements Accuracy Evaluation for ATSC Signal-Based Passive Radar Systems

机译：测量基于ATSC信号的无源雷达系统的准确性评估

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摘要

The detection and tracking performance of passive radar systems can be enhanced by exploiting multiple emitters and one receiver site by allowing for multiple bistatic geometries. This article investigates the measurement accuracy of passive radar systems that employ the advanced television system committee (ATSC 1.0) signal as a signal of opportunity. The monostatic and bistatic modified Cramer-Rao lower bound for the range and velocity measurements are derived as a quantitative way to evaluate the performance variation when exploiting multiple transmitters. The effect of 3D target position on the signal-to-noise ratio, with respect to stationary transmitters and receiver, is highlighted. Furthermore, signal-to-interference-and-noise ratio modeling is included by considering the direct signal interference suppression performance for a set of transmitters. An example in Columbus, Ohio, for a single receiver and multiple digital television transmitters that are spatially distributed is presented to find the optimal emitter that yields the best range and velocity measurement in the analyzed area. Target-tracking experiments show an agreement between the optimal emitter map and the tracking quality for the set of transmitters.
机译：通过允许多个双孔几何形状利用多个发射器和一个接收器站点，可以通过利用多个发射器和一个接收器站点来增强无源雷达系统的检测和跟踪性能。本文调查了使用先进电视系统委员会（ATSC 1.0）信号作为机会信号的被动雷达系统的测量精度。用于范围和速度测量的单声道和双晶修改的克拉姆 - RAO下限作为评估在利用多个变送器时评估性能变化的定量方法。突出了3D目标位置对静止发射器和接收器的信噪比的影响。此外，通过考虑一组发射机的直接信号干扰抑制性能，包括信号到干扰和噪声比。对于单个接收器和在空间分布的单个接收器和多个数字电视发射器的哥伦布，俄亥俄州的一个例子是为了找到最佳发射器，其在分析的区域中产生最佳范围和速度测量。目标跟踪实验显示了最佳发射极图与该组变送器的跟踪质量之间的协议。

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