Arbitrary waveform composite signal generator and signal generating method

Abstract

The invention provides an any wave form complex signal generator which comprises a local bus control module, a FIFO speed adjusting module, a D / A digital-to-analog converting module, a low-path filtering module, an analog converter, wherein the local bus control module is connected with the storing module; the local bus control module is also connected with the PIC bus controller and the PIC bus of the computer by local bus and PIC bus pin; the analog converter arranges a signal output port and a carrier input port which is connected with the external signal source.

Description

technical field [0001] The invention relates to the technical field of signal generators, in particular to an arbitrary waveform composite signal generator and a signal generating method. Background technique [0002] Existing signal generators can be divided into: one, standard signal generators, such as: high and low frequency signal generators, TV signal generators, frequency modulation, amplitude modulation signal generators, etc., such signal generators generate The signal is a standard signal; the second is an arbitrary waveform signal generator, which can be calculated according to the sampling points to generate a custom waveform. [0003] The above-mentioned standard signal generator can only generate a single standard signal, but the contemporary signal processing often requires to provide complex and multi-signal synthesis signal sources, then an arbitrary waveform signal generator must be used. Most of the existing arbitrary waveform signal generators have built...

AI Technical Summary

Problems solved by technology

However, when the waveform required to be generated cannot be composed of existing finite waveforms, the existing arbitrary waveform signal generator cannot generate the required waveform

[0004] At present, in the field of spread spectrum communication technology, there has not been a compound signal generator that can directly synthesize direct sequence spread spectrum signals and various communication interference signals, and the current arbitrary waveform signal generator cannot construct specific interference types

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