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Single-chip microcomputer-based multi-carrier interference signal generator

A technology of interference signal and single-chip microcomputer, which is applied in the field of communication, can solve the problems of complex software and hardware debugging, insufficient frequency scanning speed, large overall size, etc., and achieve the effects of reducing time to enter the market, convenient debugging, and low cost

Pending Publication Date: 2018-03-23
SUZHOU HUASHI WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional interference signal generator modules generally have two implementation methods, one is to use 555 circuit or single-chip microcomputer to generate triangular wave or sawtooth wave to control VCO, and form a frequency sweep signal within a certain frequency range, this method is not fast enough Fast, and cannot effectively cover multiple sub-carriers at the same time; one is to use a single-chip microcomputer or FPGA to control the integrated DDS chip to generate and output sub-carrier signals. This method has high material costs, complicated software and hardware debugging, and large overall size.

Method used

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Embodiment Construction

[0016] The technical solutions and implementation methods of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0017] Such as figure 1 As shown, the multi-carrier interference signal generator based on the single-chip microcomputer disclosed by the present invention includes a sequentially connected multi-subcarrier generation circuit, an adder circuit, an up-conversion circuit, a radio frequency power amplifier circuit, and a VCO circuit connected to the up-conversion circuit , and also includes a power supply module for supplying power to each of the above circuit modules.

[0018] The multi-subcarrier generating circuit is controlled by a control port to a 32-bit high-speed single-chip microcomputer (such as STC15 series), and utilizes the built-in timer and A / D circuit of the single-chip microcomputer to realize the g...

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Abstract

The invention discloses a single-chip microcomputer-based multi-carrier interference signal generator, which comprises a multi-carrier generating circuit, an adder circuit, an up-conversion circuit, aradio-frequency power amplifier circuit and a VCO circuit connected with the up-conversion circuit, wherein the multi-carrier generating circuit, the adder circuit, the up-conversion circuit and theradio-frequency power amplifier circuit are connected in sequence. The single-chip microcomputer-based multi-carrier interference signal generator further comprises a power supply module for supplyingpower to the above circuit modules. According to the invention, a high-speed 32-bit single-chip microcomputer is controlled by a program, and square waves with different frequencies are outputted through a plurality of I / O ports. All the square waves are filtered to obtain fundamental frequency components. The operational amplification is conducted to achieve the function of an adder. All fundamental frequency components are mixed and fed into a frequency mixer to be mixed with VCO signals in frequency. Final multi-carrier interference signals are obtained by means of a carrier frequency filter. Based on the method, the frequencies of subcarriers are within the range of + / - 0. 01 MHz-50 MHz. The circuit is novel in structure, simple to debug, high in thermal stability and easy to realize.Carrier signals with different frequencies can be realized. Moreover, the output of subcarrier signals with different frequencies and different frequency intervals can be realized.

Description

technical field [0001] The invention relates to the communication field, in particular to a multi-carrier interference signal generator based on a single-chip microcomputer, which is used to generate a radio frequency signal with a sub-carrier frequency of ± (0.01Hz-50MHz) and an optional carrier frequency. Background technique [0002] In electronic communication technology, the signal generator is one of the most basic components. Waveform generation and frequency control are the most basic requirements and the basis of communication technology. Therefore, it is particularly important to design the generation and control of waveforms. [0003] Traditional interference signal generator modules generally have two implementation methods, one is to use 555 circuit or single-chip microcomputer to generate triangular wave or sawtooth wave to control VCO, and form a frequency sweep signal within a certain frequency range, this method is not fast enough Fast, and cannot effectivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00
CPCH04K3/42H04K3/44
Inventor 高怀李昕陈阔朱向伟
Owner SUZHOU HUASHI WIRELESS TECH
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