中國分類號： TN851
文獻標識碼： A
DOI：10.16157/j.issn.0258-7998.222671
中文引用格式： 孫金中，付秀蘭，高艷麗. 軟件無線電架構(gòu)的導航接收機模擬前端設計[J].電子技術(shù)應用，2022，48(8)：131-134，139.
英文引用格式： Sun Jinzhong，F(xiàn)u Xiulan，Gao Yanli. Design of an analog front-end of navigation receiver based on software defined radio[J]. Application of Electronic Technique，2022，48(8)：131-134，139.

Design of an analog front-end of navigation receiver based on software defined radio

Abstract： The analog front-end of traditional navigation receiver based on superheterodyne or low IF is complex in function, high in power consumption and not conductive to monolithic integration. Based on the idea of analog minimization and digital maximization, a novel analog front-end of navigation receiver based on software radio architecture is designed and implemented by integrating a high gain RF amplifier, a high speed low power ADC and a low jitter clock phase-locked loop. Through 55 nm CMOS process circuit design, layout design, simulation and silicon wafer verification, the test results show that the analog front-end of navigation receiver works normally and only one analog receiver channel is able to process the multimode navigation signals which greatly reduces the size and power consumption of analog circuit. The analog front-end circuit has successfully applied in a multimode navigation SoC chip.

Key words : software defined radio；receiver；amplifier；ADC；PLL