Algorithms for Digital Wideband Receiver Design/Analysis for Electronic Attack

This proposal describes a multi-phase plan to develop new and unique software tools to design a digital microwave receiver using software simulation analysis. As a result of the advancement in digital technology, digital microwave receivers are rapidly replacing analog microwave receivers. These receivers include wideband electronic warfare (EW) receivers, narrow band radar and communication receivers. Although there are several approaches to design specific subsystems of a digital EW receiver such as Fast Fourier Transform (FFT) and monobit, there is no available design approach for a complete receiver. The key component in an EW receiver is the encoding circuits that generate the pulse descriptor word (PDW). The PDW includes frequency, pulse amplitude, pulse width, time of arrival (TOA) and angle of arrival (AOA). The performance of the receiver mainly depends on the encoder design. However, there is no available literature discussing the encoding scheme because they do not exist. Most of the digital receivers can not achieve their design goals, especially, the ever demanding requirement on instantaneous dynamic range, that is, the capability of measuring a weak signal in the present of a strong one. This proposal is intended to solve these problems.