Zero-IF radar signal processing | IEEE Conference Publication | IEEE Xplore

Zero-IF radar signal processing


Abstract:

In this paper, a zero-IF radar architecture is presented. An agile prototyping environment is shown, based on the capabilities of modern instrumentation complemented by C...Show More

Abstract:

In this paper, a zero-IF radar architecture is presented. An agile prototyping environment is shown, based on the capabilities of modern instrumentation complemented by COTS components and minimal custom circuitry. Receiver sensitivity improvements based on the oversampling and antipodal modulation techniques are described.
Date of Conference: 09-11 September 2015
Date Added to IEEE Xplore: 07 December 2015
Electronic ISBN:978-2-8748-7041-5
Conference Location: Paris, France

I. Introduction

In the framework of solid state maritime navigation radars, a cost-effective modular demonstrator operating at S-band has been designed based on available instruments and COTS components. The RF carrier is modulated by an arbitrarily coded sequence. Received echoes are filtered and sampled after base-band down-conversion by a phase-locked vector demodulator. A software radar signal processor is implemented to evaluate multiple signal processing algorithms. Simple digital signal processing techniques are shown to drastically improve the overall receiver performance. Especially in a zero-IF architecture, a notable processing gain can be achieved with minimal hardware and computational requirements.

References

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