Test instrument having a broadband receive with amplitude and phase normalization using a broadband temperature compensated noise source and a pseudo random sequence generator, and method associated thereto

摘要

A method of broadband receiver amplitude/phase normalization uses internal normalization sources - a thermally compensated noise source and a pseudo random sequence generator. A calibrated signal is applied to the input of the broadband receiver and processed by a digital signal processor to generate a gain versus frequency table. Then the internal noise source is applied to the input of the broadband receiver and process by a digital signal processor to generate a noise level versus frequency table. Finally the internal pseudo random sequence generator applies a pseudo random sequence waveform to the input of the broadband receiver, the pseudo random sequence waveform being process by the digital signal processor to generate equalization filter coefficients for the IF stages.