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Signal generator with function of outputting noise signal and method for outputting noise signal

A signal generator and output noise technology, which is applied in the field of multi-channel signal generators, can solve the problem of low randomness of noise, and achieve the effect of improving the same noise and high randomness

Active Publication Date: 2016-04-20
RIGOL
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  • Application Information

AI Technical Summary

Problems solved by technology

[0029] In order to solve the problem of low randomness of noise generated in the prior art, the present invention provides a signal generator that generates noise with high randomness

Method used

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  • Signal generator with function of outputting noise signal and method for outputting noise signal
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  • Signal generator with function of outputting noise signal and method for outputting noise signal

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no. 1 approach

[0045] Please refer to Figure 7 , the signal generator 2 includes a control unit 21 , a non-volatile memory 22 , an interface unit 23 , an input unit 24 , a waveform processing unit 25 and a digital-to-analog conversion unit 26 . The non-volatile memory 22 , the interface unit 23 , the input unit 24 , and the waveform processing unit 25 are respectively connected to the control unit 21 , and the digital-to-analog conversion unit 26 is connected to the waveform processing unit 25 .

[0046] The control unit 21 is responsible for receiving and analyzing the instruction information input by the input unit 24, responsible for controlling the interface unit 23 to carry out data sending and receiving work, controlling the data stored in the non-volatile memory 22 to be read and stored, and responsible for according to the The instruction information configures the waveform processing unit 25 and the digital-to-analog conversion unit 26 . The waveform processing unit 25 is responsi...

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Abstract

The invention discloses a signal generator 2 with noise signal output function. The signal generator 2 comprises a control unit 21, an input unit 24, a nonvolatile memory 22, a wave shape processing unit 25, and a digital to analog conversion unit 26, wherein the input unit 24, the nonvolatile memory 22 and the wave shape processing unit 25 are connected to the control unit 21; the digital to analog conversion unit 26 is connected with the wave shape processing unit 25; a characteristic parameter 221 is stored in the nonvolatile memory 22 and comprises a starting up frequency 222; the control unit 21 is used for generating an original value related to the starting up frequency 222; the wave shape processing unit 25 is used for utilizing the original value to generate a pseudorandom numbers sequence; and the digital to analog conversion unit 26 is used for performing digital to analog conversion to the pseudorandom numbers sequence. The signal generator 2 provided by the invention solves the problem that the same noise is generated when a user uses the signal generator repeatedly.

Description

technical field [0001] The invention relates to a multi-channel signal generator with the function of outputting noise signals, in particular to a multi-channel signal generator whose output noise has high randomness. Background technique [0002] As a common excitation source, signal generators have been widely used in scientific research and industrial engineering. A typical application of the signal generator is to simulate various signals in the laboratory, as the input stimulus of the circuit and system under test, and provide a simulation environment for testing various performance indicators of the circuit and system under test. Signal generators in the traditional sense are divided into four categories according to their signal waveforms: (1) sinusoidal signal generators: mainly used to measure frequency characteristics, nonlinear distortion, gain and sensitivity of circuits and systems; (2) function ( Waveform) signal generator: generate some specific periodic time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/00
Inventor 王悦王铁军李维森
Owner RIGOL