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A telemetry pcm/fm system transmission method based on mimo technology

A transmission method and technology, which is applied in the field of telemetry communication, can solve the problems of increasing PCM/FM system bit error rate, low throughput, Doppler shift, etc., to resist wireless channel fading, reduce bit error rate, and improve The effect of peak rate

Active Publication Date: 2020-10-30
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In summary, the existing problems in the prior art are: the existing PCM / FM telemetry system has a low system throughput; in a high dynamic environment, the receiver often produces a high dynamic Doppler shift, which greatly increases the bit error rate of PCM / FM system

Method used

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  • A telemetry pcm/fm system transmission method based on mimo technology
  • A telemetry pcm/fm system transmission method based on mimo technology
  • A telemetry pcm/fm system transmission method based on mimo technology

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] Such as figure 1As shown, the telemetry PCM / FM system transmission method based on MIMO technology provided by the embodiment of the present invention includes the following steps:

[0043] S101; setting of system parameters;

[0044] S102: Randomly generate PCM data and perform code conversion processing;

[0045] S103: Perform interpolation processing on the data processed in step S102;

[0046] S104: pass the interpolated data stream through a preset filter, and filter ou...

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Abstract

The invention belongs to the technical field of telemetering communication, and discloses a telemetering PCM / FM (Pulse Code Modulation / Frequency Modulation) system transmission method based on MIMO technologies. The telemetering PCM / FM system transmission method comprises the steps of: randomly generating PCM data and carrying out code conversion processing; carrying out interpolation processing on the data and enabling the data to pass through a premodulation filter; selecting different MIMO transmission technologies to combine with a telemetering PCM / FM system; respectively carrying out frequency modulation on a carrier by two paths of sub-data stream as modulation signals so as to obtain PCM / FM signals; enabling the signals to pass through a three-path Rician channel to reach a receiving end; enabling the data stream to pass through a band-pass filter; carrying out compensation on the channel by using an LMS time domain equalizer; carrying out frequency discrimination processing on the data subjected to processing of the equalizer; according to an adopted MIMO technology type, determining to adopt a MIMO detection technology or a receiving diversity technology; and carrying out statistics on a bit error rate of the system and calculating system throughput capacity. According to the Telemetering PCM / FM system transmission method disclosed by the invention, the bit error rate of an existing telemetering system is reduced, and system throughput is improved by over one time.

Description

technical field [0001] The invention belongs to the technical field of telemetry communication, and in particular relates to a telemetry PCM / FM system transmission method based on MIMO technology. Background technique [0002] The Russians began using telemetry for military purposes as early as the mid-nineteenth century. In early 1912, American scientists invented the first radio telemetry device. In the Second World War, the United Kingdom, Germany, and the United States have widely used telemetry technology in military affairs and achieved great success, which has made telemetry technology more and more important. Since then, telemetry technology in the modern sense has begun to develop rapidly. Since telemetry technology plays an increasingly prominent role in the development of the country, my country began to conduct research on telemetry technology in the 1950s. At the end of the 1980s, my country began to study the S-band telemetry system, and adopted the PCM / FM sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04B7/0413H04B7/06H04B7/08H04B14/04H04L27/16
CPCH04B7/0413H04B7/06H04B7/0857H04B14/04H04L1/0042H04L1/0048H04L1/0054H04L27/16Y02D30/70
Inventor 任光亮马全江
Owner XIDIAN UNIV
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