Transceiver front end for software radio systems

用于软件无线电系统的前端收发机

Abstract

本发明提供了一种用于软件无线电系统的数字前端收发机系统(300),包括:发射机模块(310),用于对基带数字同相(I)信道和正交(Q)信道进行数字化插值、上变频和组合,从而形成数字中频(IF)IQ信号,以便转换成用于发射的模拟IF IQ信号;接收机模块(320),用于对接收到的数字IF IQ信号进行分离、下变频和抽取,从而形成基带数字I信道和Q信道。发射机模块和接收机模块使用公共的固定采样和IF转换率f<sub>S</sub>,其中,f<sub>S</sub>是基带信号的带宽的四倍,从而通过根据基带带宽来选择固定采样率,使得系统能够应用在具有任意基带带宽的无线通信应用的软件无线电系统中。
A digital front end transceiver system (300) for a software radio system comprising: a transmitter module (310) adapted to digitally interpolate, up-convert and combine baseband digital in-phase (I) and quadrature (Q) channels to form a digital intermediate frequency (IF) IQ signal for conversion to an analogue IF IQ signal for transmission; and a receiver module (320) adapted to separate, down- convert and decimate a received digital IF IQ signal into baseband digital I and Q channels. The transmitter and receiver modules use a common fixed sampling and IF conversion rate fs, where fs is a quadruple of the bandwidth of the baseband signal, such that the system can be applied in a software radio system for a wireless communication application having any baseband bandwith by selecting the fixed sampling rate based on the baseband bandwidth.

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Cited By (6)

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    CN-102223223-AOctober 19, 2011中兴通讯股份有限公司Method and device for receiving multi-carrier signal
    CN-103916149-AJuly 09, 2014西安合众思壮导航技术有限公司下变频方法、装置及带有该装置的设备
    CN-103916149-BNovember 25, 2015西安合众思壮导航技术有限公司下变频方法、装置及带有该装置的设备
    CN-103957020-BAugust 10, 2016重庆邮电大学一种支持多模移动通信系统的信号中频接收装置
    CN-105391659-AMarch 09, 2016上海华虹集成电路有限责任公司Circuit for decoding high-speed type A signal sent by card
    WO-2013000317-A1January 03, 2013中兴通讯股份有限公司Procédé et dispositif de réception de signal multiporteuse