A 79GHz UWB pulse-compression vehicular radar in 90nm CMOS
A 79GHz UWB pulse-compression vehicular radar in 90nm CMOS
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采用 90nm CMOS 的 79GHz UWB 脉冲压缩车载雷达
DOI：
10.1109/mwsym.2012.6258346
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Ta
中科院分区：
文献类型：
--
作者：
K. Tan;C. Lai;Po;Chia;Jen;S. Hsu;G. Huang;Ta
介绍了一种79 GHz超宽带脉冲压缩(PC)车载雷达系统。PC波形是具有内部调制的长脉冲。它可以在不提高瞬时峰值功率的情况下增加能量。同时，PC波形保留了与单个脉冲波形相关联的相同带宽和距离分辨率。此外，PC技术还允许多个雷达在码分多址(CDMA)的基础上同时工作。在这项工作中，PC波形的内部调制是使用31位长的伪随机(PN)序列的二进制相移键控(BPSK)。调制速率为1 Gb/S，最大脉宽为31毫微秒。该芯片提供了一个自给自足的雷达系统，其发射机、接收机、频率合成器和完整的定时电路完全集成在标准的90 nm CMOS工艺中。
A 79GHz UWB pulse-compression (PC) vehicular radar system is presented. A PC waveform is a long pulse with internal modulation. The energy of it can be increased without raising the instantaneous peak power. Meanwhile, a PC waveform preserves an equal bandwidth and the range resolution associated with a single pulse waveform. In addition, the PC technique also allows multiple radars operating simultaneously based on the code division multiple accessing (CDMA). In this work, the internal modulation of the PC waveform is binary phase shift keying (BPSK) with a 31-bit length pseudo noise (PN) sequence. The modulation rate is 1 Gb/s and the maximum pulse width is 31 nsec. The CMOS chip presents a self-contained radar system with the transmitter, receiver, frequency synthesizer, and complete timing circuit fully integrated in a standard 90nm CMOS technology.