Novel data caching system and caching method for broadband receiver

Abstract

The invention discloses a novel data caching system and a data caching method for a broadband receiver. The caching method comprises the steps that (1) a controller receives a data request command transmitted by other logic modules of an intermediate frequency processor; (2) the controller detects the current data request command, makes arbitration and determines the data request command to be executed currently; (3) the controller generates the address that the current data is to be written into or to be read out according to the data request command to be executed after arbitration; (4) the current data is written to the specified address of a memory bank or the current data is read out from the specified address of the memory bank. The data caching system and the data caching method for the broadband receiver have the advantages that the contradiction between data accessing speed and data storage capacity is solved, and the data storage demand for large broadband and ultra-large broadband signals can be met; the storage space of the memory bank also can be allocated, and the requirements on multi-channel data accessing and small-broadband data continuous transmission, and synchronous large-broadband data write-in or read-out operation are met.

Description

technical field [0001] The invention relates to a novel data buffering system and a buffering method suitable for wideband receivers, belonging to the field of data analysis and storage. Background technique [0002] Usually, in a monitoring receiver, it is often required that the range of signals that the equipment can capture includes a signal with a bandwidth as small as a few hundred KHZ and a bandwidth as large as tens of MHz. According to the development vision of software radio, it is hoped that the higher the degree of digitalization of the equipment, the better. It is best to only need an antenna and a set of pure digital receivers. But in fact, because the current digital devices can basically only work in the IF bandwidth, the current receiver architecture also adds a radio frequency receiver between the antenna and the data IF receiver. The radio frequency receiver performs down-mixing on the signal received by the antenna, and then converts it into a digital s...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of data buffering system and buffering method applicable to wideband receivers, to solve the problem of contradiction between data access speed and data storage capacity existing in the data buffering method of existing intermediate frequency processors

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