A novel OFDM-based Radar and Communication System Design using Digital IQ-Modulation and 52 GS/s Direct-RF Data Converter

被引：1

作者：

Waldmann, Silvio ^{[1
]}

Ordouei, Helia ^{[1
]}

Gerfers, Friedel ^{[1
]}

机构：

[1] Tech Univ Berlin, Chair Mixed Signal Circuit Design, Berlin, Germany

来源：

2022 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 22) | 2022年

关键词：

OFDM; radar; radcom; system design; direct-RF; digital IQ; RESOLUTION;

D O I：

10.1109/ISCAS48785.2022.9937244

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Orthogonal frequency-division multiplexing (OFDM)-based radars require a high bandwidth for the digital-to-analog (DAC) and analog-to-digital (ADC) converters. Recent advancements in converter designs have pushed the available sampling speed well above 50 GS/s. This allows OFDM-based radar waveforms with a high bandwidth to be sampled directly to the carrier frequency, reducing the number of building blocks in the transceiver chain. This paper proposes a CMOS based radar and communication transceiver system design which achieves a range resolution of 10 cm and a velocity resolution of 0.55 m/s. Utilizing digital I/Q mixing and directly sampling a 1.52 GHz bandwidth OFDM-based radar signal halves the number of required data converters and can significantly reduce the I/Q imbalance.

引用

页码：452 / 456

页数：5

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