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Flexible digital band-limited white noise generation method

A generation method, digital band technology, applied in the direction of noise generation, transmission monitoring, electrical components, etc.

Active Publication Date: 2018-03-06
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to avoid the shortcomings of the current white noise generation method mentioned in the above-mentioned background technology, and provide a flexible digital band-limited white noise generation method

Method used

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] figure 1 It is an electric principle block diagram of a flexible digital band-limited white noise generation method of the embodiment of the present invention, which includes full-band digital white noise generation, analysis filter bank, gain adjustment and synthesis filter bank.

[0016] Specifically include the following steps:

[0017] ①Mathematical method is used to generate full-band digital white noise signal;

[0018] In the embodiment of the present invention, the BM algorithm is used to generate a full-band digital white noise signal;

[0019] ② Send the full-band digital white noise signal to the analysis filter bank with a bandwidth granularity of 1MHz;

[0020] ③According to the bandwidth granularity of the microwave digital flexible transponder and the frequency band distribution of the digital white noise sign...

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Abstract

The invention discloses a flexible digital band-limited white noise generation method, and mainly relates to generation of a digital band-limited white noise. In the method, through further reformingapplicability of the antecedent digital white noise generation methods, and using a novel implementation structure, under the premise of keeping a design architecture unchanged, a plurality of digitalband-limited white noise signals with different positions, variable bandwidth and different power can be output simultaneously through parameter configuration. The method provided by the invention has the advantages that the number of the output signals is adjustable, signal bandwidth is variable, independent setting of signal power is supported, and so on, and the method is suitable for the occasions needing the digital white noise signals with different bandwidth, different position and different power.

Description

technical field [0001] The invention relates to a flexible digital band-limited white noise generation method, which is suitable for the fields of radar signal processing, communication system test, remote control and telemetry, channel simulation and the like. Background technique [0002] White noise is ubiquitous throughout the universe. In order to be close to the real environment, it is necessary to artificially add digital white noise signals in the fields of radar signal processing, communication system testing, remote control telemetry, and channel simulation. However, most current white noise generation methods can only output a digital white noise signal with a fixed bandwidth, and the application is relatively fixed. It is not adaptable to some occasions that require multiple digital band-limited white noise signals with different bandwidths and different positions. Contents of the invention [0003] The problem to be solved by the present invention is to avoid ...

Claims

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Application Information

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IPC IPC(8): H04B17/391H03B29/00
Inventor 李辉张春晖
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP