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1. 发明授权

KR100366751B1 광대역FFT채널라이저 失效
公开(公告)号：KR100366751B1
公开(公告)日：2003-04-10
申请号：KR1019960705589
申请日：1995-03-13
申请人： 에어네트 커뮤니케이션즈 코포레이션
发明人： 카니로널드알. , 윌리엄스테리엘.
IPC分类号： H04J4/00 , H03H17/02
CPC分类号： H04B1/0014 , H04J1/05
摘要： A physically compact, multichannel wireless communication transceiver architecture employs overlap and add or polyphase signal processing functionality, for wideband signal processing, together with a sample rate. A receiver section receives a plurality of multiple frequency communication channels and outputs digital signals representative of the contents of the plurality of multiple frequency communication channels. The receiver section contains an FFT-based channelizer that processes the digital signals output by a wideband digital receiver and couples respective channel outputs to a first plurality of digital signal processor units, which process (e.g. demodulate) respective ones of the digital channel signals and supply processed ones of the digital channel signals at respective output ports for distribution to an attendant voice/data network. On the transmit side, a transmit section contains a plurality of digital signal processors, respectively associated with respective ones of a plurality of incoming (voice/data) communication signals to be transmitted over respectively different frequency channels. Their processed (modulated, encoded) outputs are supplied to an inverse FFT combiner. The FFT combiner supplies a combined multichannel signal to a wideband transmitter which transmits a multiple frequency communication channel signal. Each of the channelizer and combiner may be implemented using overlap and add or polyphase filtering.
摘要翻译：物理紧凑的多通道无线通信收发器体系结构采用重叠和增加或多相信号处理功能，用于宽带信号处理以及采样率。接收器部分接收多个多频率通信信道并输出表示多个多频率通信信道的内容的数字信号。接收器部分包含基于FFT的信道器，其处理由宽带数字接收器输出的数字信号并将相应的信道输出耦合到第一多个数字信号处理器单元，该第一多个数字信号处理器单元处理（例如解调）各个数字信道信号并提供在相应的输出端口处处理一些数字信道信号，以便分配给伴随的话音/数据网络。在发送侧，发送部分包含多个数字信号处理器，分别与要在不同的频率信道上发送的多个输入（话音/数据）通信信号中的各个信号相关联。他们的处理（调制，编码）输出提供给一个逆FFT组合器。 FFT组合器将组合的多信道信号提供给发送多频率通信信道信号的宽带发射机。信道器和组合器中的每一个可以使用重叠和增加或多相滤波来实现。

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