1. A UWB IR timed-array radar using time-shifted direct-sampling architecture
- Author
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Yen-Ju Chen, Feng-Hsu Chung, Jen-Ming Wu, Ta-Shun Chu, Kai-Wen Tan, Shi-Yu Huang, Shr-Chau Lai, Chang-Ming Lai, Jun-Wei Huang, Keh-Jeng Chang, Chia-Fung Yen, Po-Chiun Huang, and Liu-Yuan Yu
- Subjects
Pulse repetition frequency ,Engineering ,business.industry ,Pulse-Doppler radar ,Electrical engineering ,law.invention ,Continuous-wave radar ,Time of arrival ,Radar engineering details ,Sensor array ,law ,Angle of arrival ,Electronic engineering ,Radar ,business - Abstract
A UWB impulse radio (IR) timed-array radar using time-shifted direct-sampling architecture is presented. The transmitter array can generate and send a variety of 10GS/s pulses towards targets. The receiver array samples the reflected signal in RF domain directly by time interleaved sampling with equivalent sampling rate of 20 GS/s. The radar system can determine time of arrival (TOA) and direction of arrival (DOA) through time-shifted sampling edges which are generated by on-chip digital-to-time converters (DTC). The proposed architecture has range and azimuth resolution of 0.75 cm and 3 degree respectively. This prototype is implemented in a 0.18µm CMOS technology.
- Published
- 2012
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