Multi-card Beidou transmitting/receiving radio station repeater

A technology for transceivers and transponders, applied in electrical components, radio transmission systems, transmission systems, etc., to achieve real-time performance, improved sound quality, and improved intelligibility

Inactive Publication Date: 2017-12-15
郭锐 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a radio transponder based on multi-card Beidou transceiver to solve the problem of lar

Method used

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  • Multi-card Beidou transmitting/receiving radio station repeater
  • Multi-card Beidou transmitting/receiving radio station repeater
  • Multi-card Beidou transmitting/receiving radio station repeater

Examples

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Embodiment Construction

[0021] as attached figure 2 The multi-card Beidou radio transponder consists of a Beidou multi-card transceiver control module, a main control unit and an ultrashort wave receiving and transmitting unit.

[0022] The Beidou multi-card transceiver control module adopts a full-chip design, crystal oscillator, power management, FLASH, AD / DA, etc. use general-purpose devices to complete the entire Beidou satellite signal processing process from antenna receiving satellite radio frequency signals to user data interaction, including: satellite radio frequency Signal down-conversion, frequency mixing, filtering, amplification and digital quantization, as well as satellite baseband signal capture, precision tracking, demodulation, despreading, Viterbi decoding, transmission message formation, coding, spread spectrum, message analysis, unpacking, Grouping, inbound and outbound protocol processing, and user interface protocol processing, while completing special data processing control...

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Abstract

At present, problems of small communication range and more blind zone are existent in an extensively used radio station intercom system, for the above-mentioned problem, the invention provides a multi-card Beidou transmitting/receiving radio station repeater. The device performs the voice transmission by using the Beidou multi-card switching, and the transmitted voice is converted into an ultra-short wave radio station signal to transmit and receive, and then the service range of the intercom and the radio station are extended. The device comprises a Beidou multi-card transmitting/receiving control module, a master control unit, and an ultra-short wave receiving/transmitting unit. The Beidou multi-card transmitting/receiving module improves the transmission frequency and bandwidth of the voice signal and improves the instantaneity of the voice intercom through the multi-user card switching transmission control; the master control unit performs low-code stream compression on the voice signal, and then performs the delay audio mixing processing to improve the differentiation degree of the narrow-band voice under the normal speed; and meanwhile, the invention further designs a radio station adaption circuit to finish the conversion between the Beidou voice signal and the radio station signal, the conversion comprises the PTT, COR and delay compensation.

Description

technical field [0001] The invention relates to a radio station and a voice signal forwarding device in the field of Beidou short message communication, in particular to a conversion device that transmits voice with multiple cards and channels and converts it into VHF / UHF segment radio transmission. Background technique [0002] Currently widely used wireless intercom systems, the communication distance is generally only within a few kilometers. Whether it is an analog or digital radio station, if you want to expand the range, you must rely on the establishment of various base stations and repeaters, or rely on the connection with the public network. However, in some mobile industries such as maritime, shipping, prospecting, border defense, forest police, and emergency counter-terrorism, there are often a large number of blind spots in public network communication coverage, causing communication obstacles, which are usually difficult to overcome. The "Beidou" satellite navig...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18515
Inventor 胡瑞张兴玉唐毅王华彬郭锐
Owner 郭锐
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