Wideband digital spectrometer

摘要

A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output.

主权项

1. A radio transceiver system for receiving communications in a band concurrently with transmissions from a transmitter transmitting in the band, comprising:
(a) an input port, configured to receive a first signal comprising the communications in the band and the transmission in the band from the transmitter; (b) a receiver, having a dynamic range sufficient to concurrently represent the communications in the band and the transmissions as a first analog signal; (c) a plurality of analog time delay elements, each being configured to receive, selectively weight and combine an analog representation of the received first analog signal, to produce a second analog signal; (d) a digitizer configured to produce a digitized signal from the second analog signal; and (e) a processing subsystem, comprising at least one of a digital correlator and a Fourier transform processor, configured to:
control a respective weight of respective ones of the plurality of analog time delay elements in dependence on the digitized signal, to produce the second analog signal representing at least partial cancellation of the transmission in the band while preserving the communications in the band; anddigitally cancel at least a portion of a residual transmission in the band in dependence on at least digitized signal; and (f) an output port configured to communicate the received communications.