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A signal playback module based on load ground detector

A signal playback and detector technology, applied in radio transmission systems, electrical components, transmission systems, etc., can solve problems such as maintenance difficulties

Inactive Publication Date: 2016-08-31
CHENGDU LONGTENG ZHONGYUAN INFORMATION TECHCO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the particularity of satellite work in orbit, it is extremely difficult to maintain it after launch

Method used

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  • A signal playback module based on load ground detector
  • A signal playback module based on load ground detector

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Embodiment Construction

[0013] The technical solution 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.

[0014] Such as figure 1 As shown, a signal playback module based on the load ground detector, it includes a digital-to-analog conversion circuit and a filter circuit, the filter circuit includes a first filter and a second filter, and the digital-to-analog conversion circuit is integrated in the FMC board Above, the data input terminal of the digital-to-analog conversion circuit is connected to the IQ data signal output terminal of the FMC board interface, the control input terminal of the digital-to-analog conversion circuit is connected to two TTL trigger pulse input terminals through the FMC board interface, and the digital-to-analog conversion circuit One of the outputs is connected to the input of the first filter, and the other output...

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Abstract

The invention discloses a load ground detector based signal playback module. The module comprises a digital-to-analogue conversion circuit and a filter circuit. The filter circuit comprises a first filter and a second filter. The digital-to-analogue conversion circuit is integrated on an FMC board card, the data input end of the digital-to-analogue conversion circuit is connected with an IQ data signal output end of an FMC board card interface, the control input end of the digital-to-analogue conversion circuit is connected with two TTL trigger pulse input ends through the FMC board card interface, one output of the digital-to-analogue conversion circuit is connected with the input of the first filter, the other output is connected with the input of the second filter, and the outputs of the first filter and the second filter are output to external equipment through two DA output terminals. By means of the module, data rate changing and modulation of input data can be achieved, and radio-frequency signals meeting index requirements are output; an external SMA is connected with the filters directly, so that changing can be performed directly according to user requirements.

Description

technical field [0001] The invention relates to a signal playback module based on a load ground detector. Background technique [0002] Artificial satellites are the most launched and fastest-growing spacecraft, and are widely used in telecommunications, meteorology, resource surveys, military reconnaissance and other fields. At present, artificial satellites are mainly composed of structural systems, propulsion systems, thermal control systems, power supply and distribution systems, star systems, telemetry and remote control systems, attitude and orbit control systems, data transmission systems, and payloads. Among them, the payload is the subsystem that directly performs specific tasks in the satellite, which is the core part of the satellite, and it is the main subsystem that determines the performance level of the satellite. The data transmission system is the key subsystem to realize the real-time transmission of payload information between space and ground. Due to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/15H04B17/40H04B7/185
Inventor 龙宁张星星
Owner CHENGDU LONGTENG ZHONGYUAN INFORMATION TECHCO
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