High resolution group quantization phase processing method under pilot frequency architecture

Abstract

The invention discloses a high resolution group quantization phase processing method under a pilot frequency architecture. The method comprises the following steps of A, using a signal processing system to process a reference signal and a measured signal and then simultaneously inputting into a phase quantization fuzzy region to generate a circuit and a flip and flop generator; B, carrying out phase quantization accumulation on the input reference signal and the measured signal and transmitting an output signal to a data selector; C, using the data selector to output a final phase contrast result and acquiring a maximum common factor period and group quantization of a comparison signal, and transmitting the output signal to a real-time measurement gate generation circuit; D, detecting a phase of the group quantization and transmitting a result to a time frequency multiparameter measurement system; E, using the time frequency multiparameter measurement system to complete several parameter measurements to the measured signal. By using the method in the invention, in a radio frequency scope, without frequency synthesis and conversion, a wide-band, rapid and high-resolution time frequency multiparameter measurement and contrast between any frequency signals can be completed.

Description

technical field [0001] The invention relates to a phase processing method, in particular to a high-resolution group quantization phase processing method under a different-frequency framework. Background technique [0002] Phase processing is a research hotspot in the field of precision measurement physics today. It has extremely high measurement resolution and is used in high-precision time-frequency transmission and comparison, phase noise measurement and suppression, new high-precision atomic frequency standards and their signal processing and compensation. has an important role. At present, the commonly used phase processing methods abroad are usually phase difference measurement methods based on time intervals. Typical ones include time interval counting method, time-to-digital conversion method, phase comparison method and double mixing time difference method. The time interval counting method has the advantages of wide range, high linearity and low cost, but is limite...

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Problems solved by technology

[0004] Even so, due to the gap between China and foreign countries in terms of precision frequency sources, especially high-precision atomic frequency standard technology, although the foreign advanced phase processing technology has been continuously tracked and in-depth research has been carried out on inter-frequency phase processing, it still cannot meet the requirements of foreign countries. The need for high-resolution phase processing

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