|Table of Contents|

Development of digital transceiver module for X-band digital array radar

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2013年04期
Page:
457-
Research Field:
Publishing date:

Info

Title:
Development of digital transceiver module for X-band digital array radar
Author(s):
Ma XiaofengQin SiSheng WeixingWang HaoNi Xiaokang
School of Electronic and Optoelectronic Engineering,NUST,Nanjing 210094,China
Keywords:
digital transceiver module digital array radar software defined radio modularization low sidelobe
PACS:
TN957.3
DOI:
-
Abstract:
In order to improve the integration level and maintainability of digital transceivers used in X-band digital array radar(DAR),modularization and integration design concepts are adopted to develop one 10-channel digital T/R module in this paper.The module can be directly plugged into the micro-strip array antenna and connected to the subsequent signal processor only through a high-speed bidirectional fiber-optic.It is suitable for system integration and expansion.In this module,software defined radio(SDR)functions are realized in field programmable gate array(FPGA),including binary phase coded waveform generation with arbitrary code length and code type,digital transmission beam-forming,digital quadrature modulation and demodulation,digital down-converting,base-band data pre-processing,etc.Experimental results verify all SDR functions of the module and show that the module can simultaneously form multiply receive beams with extremely low side-lobes below -24.5 dB after far field channel calibration.

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Last Update: 2013-08-31