| 摘要 |
<p>Polyphase channelizing transmitters convert multiple signal channels into a single stream for transmission and corresponding polyphase channelizing receivers process the received stream to recover signals corresponding to the original signal channels. The filter transfer functions for both the transmitters and receivers are designed to have non-recursive numer ators and recursive denominators. Such filters can be realized using non-recursive (e.g., finite impulse response (FIR)) filters and recursive (e.g., infinite impulse response) filters on op posite sides of a Fourier transform. For a given application, polyphase structures of the present inve ntion may require fewer coefficients to implement than conventional (e.g., FIR-based) solution s and will therefore be less complex and less expensive.</p> |
