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Estimation of modulation parameters for LPI radar using Quadrature Mirror Filter Bank

机译:使用正交镜像滤波器组估计LPI雷达的调制参数

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The performance of Electronic warfare system mostly depends on the design of LPI radar and ESM receivers. The objective of LPI radar is to detect the target at long ranges and to hide from intercept receiver available at the short range. New modulation techniques were developed to reduce the peak transmitted power for LPI radar. For the design of efficient ESM receiver, many signal processing algorithms were developed which extracts the modulation parameters from the received signal. Quadrature Mirror Filter Bank (QMFB) method is applied to estimate the various parameters of the LPI radar under different types of modulation techniques namely P1, P2, P3, P4 for various noisy conditions. It is observed that QMFB method is efficient to extract all modulation parameters for SNR values under no noise, 0dB, and up to -4dB.
机译:电子战系统的性能主要取决于LPI雷达和ESM接收器的设计。 LPI雷达的目的是在远距离检测目标,并在短距离向躲藏的接收器隐藏。开发了新的调制技术以降低LPI雷达的峰值发射功率。为了设计高效的ESM接收机,开发了许多信号处理算法,这些算法从接收到的信号中提取调制参数。正交镜像滤波器组(QMFB)方法用于在各种噪声条件下,在不同类型的调制技术(即P1,P2,P3,P4)下估计LPI雷达的各种参数。可以观察到,在无噪声,0dB和高达-4dB的情况下,QMFB方法可有效提取SNR值的所有调制参数。

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