目前，器件性能是實(shí)現(xiàn)理想軟件無(wú)線電的主要限制因素，隨著微電子技術(shù)及大規(guī)模
集成電路的發(fā)展，實(shí)用軟件無(wú)線電正向理想化逐步邁進(jìn)。本文介紹了數(shù)字接收機(jī)ICS554 的結(jié)構(gòu)及特點(diǎn)。給出了其在軟件高頻雷達(dá)系統(tǒng)中的應(yīng)用實(shí)例，其中包括系統(tǒng)硬件原理圖，數(shù)字接收機(jī)模塊的軟件設(shè)計(jì)思想及其工作流程圖。并且測(cè)試了其性能，實(shí)測(cè)結(jié)果表明該數(shù)字接收機(jī)工作穩(wěn)定、性能良好，目前已經(jīng)應(yīng)用于軟件高頻雷達(dá)系統(tǒng)之中。
關(guān)鍵詞：軟件無(wú)線電；ICS554；模數(shù)轉(zhuǎn)換；數(shù)字下變頻；高頻雷達(dá)
Abstract：At present, the component performance is the main limiting factor of realizing ideal
software radio, with the development of microelectronics technology and large-scale integrated circuit, practical software radio is marching gradually towards idealization. This article introduced the structure and the characteristic of the digital receiver ICS554. Giving its application example in the software high frequency radar system, including the system hardware schematic diagram, the digital receiver module software design concept and the work flow chart. And has tested its performance, the actual result indicated that this digital receiver works stably, its performance is good, at present it has already applied in the software high frequency radar system.
Keywords：Software Radio; ICS554; ADC; DDC; High-Frequency Radar