本期文章为雷达相关知识拓展阅读，本文为TI官方《Using a complex-baseband architecture in FMCW radar systems.pdf》翻译整理，前段时间有朋友在【雷达工程技术交流微信群】中分享过，现在我把它整理为中英文对照版本后，便于大家阅读和学习。【摘要】
This white paper explains the advantages of a complex-baseband architecture in frequency-modulated continuous wave (FMCW) radar systems. Typical radar front-end implementations use a real mixer with a real baseband and analog-to digital converter (ADC) chain. However, there are performance advantages that can be leveraged with the use of a quadrature mixer and complex-baseband architecture in the context of FMCW radar.
本白皮书解释了“复基带架构”在调频连续波 (FMCW) 雷达系统中的优势， 传统的雷达前端使用带有实基带和模数转换器 (ADC) 链路的实混频器实现。然而，在 FMCW 雷达环境中使用正交混频器和复基带架构可以发挥雷达性能的优势。This architecture has been implemented in the 76–81-GHz fully integrated complementary metal-oxide semiconductor (CMOS) millimeter wave (mmWave) sensors from Texas Instruments. The first part of this white paper describes the complex-baseband architecture in the context of FMCW radar and the advantages of this architecture. The second part explains how complex baseband does not increase the memory requirements or computational burden on the digital signal processing (DSP) side.该架构已在德州仪器 (TI) 的 76–81 GHz 完全集成了互补金属氧化物半导体 (CMOS) 毫米波 (mmWave) 传感器中实施。本白皮书的第一部分描述了 FMCW 雷达背景下的复基带架构以及该架构的优势， 第二部分解释了复基带如何不会增加数字信号处理 (DSP) 端的内存需求以及计算的负担。本文来源：Using a complex-baseband architecture in FMCW radar systems.pdf
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