IFM receiver with two correlators

A novel approach to an instantaneous frequency measurement receiver simplifies the design by using less hardware. This design is an essential approach to building an IFM receiver with simultaneous signal capability. Delay lines and correlators are used to measure the frequency of the input signals. To achieve a wide input bandwidth with fine frequency resolution, the novel receiver uses only two delay lines. To simplify the design, the algorithm used is related to the Chinese remainder theorem, modified to guard against noise. The receiver will have a resolution of 1 MHz and a bandwidth of 500 MHz, although only two phase correlators need to be digitized