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Arbitrary waveform composite signal generator and signal generating method

A composite signal and arbitrary waveform technology, which is applied in the direction of instruments, pulse generation, special data processing applications, etc., can solve the problems of inability to generate and construct interference types, etc., and achieve the effects of strong versatility, small distortion, and convenient waveform generation

Inactive Publication Date: 2006-05-03
SOUTH CHINA UNIV OF TECH
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  • Summary
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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

Method used

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  • Arbitrary waveform composite signal generator and signal generating method
  • Arbitrary waveform composite signal generator and signal generating method
  • Arbitrary waveform composite signal generator and signal generating method

Examples

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Embodiment

[0042] Such as figure 1 , 2 As shown, the arbitrary waveform composite signal generator includes a local bus control module, a FIFO rate adjustment module, a D / A digital-to-analog conversion module, a low-pass filter, and an analog multiplier connected in sequence, and the local bus control module is also connected with The storage module is connected to the PCI bus controller and the PCI bus of the computer in turn through the local bus and the PCI bus pins. The analog multiplier is provided with a signal output port and a carrier input port, and is connected to an external signal source through the carrier input port.

[0043] The PCI bus controller adopts PLX9054 chip, which is connected to the PCI bus and the local bus. The clock on the PCI bus is provided by the computer, and the clock on the local bus is 40MHz, which is provided by the arbitrary waveform composite signal generator. When transferring data from the computer to the PLX9054 chip, the PLX9054 uses C mode and...

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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 sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K4/00G06F17/00
Inventor 谢胜利李卫军傅予力邓毅华
Owner SOUTH CHINA UNIV OF TECH
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