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A multi-hop relay voice communication method for ultrashort wave radio stations

An ultra-short-wave radio and multi-hop relay technology, which is used in voice analysis, electrical components, radio transmission systems, etc., to solve problems such as the inability to achieve multi-hop relay transmission and the difficulty of ensuring continuous and reliable transmission of voice.

Active Publication Date: 2022-05-24
西安烽火电子科技有限责任公司
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  • Claims
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Problems solved by technology

In addition, in the long-distance communication of voice, the use of existing receivers to collect voice cannot realize multi-hop relay transmission. When the transmission rate of the wireless link changes dynamically or drops sharply, it is difficult for the existing voice to ensure continuous and reliable transmission. transmission

Method used

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  • A multi-hop relay voice communication method for ultrashort wave radio stations
  • A multi-hop relay voice communication method for ultrashort wave radio stations
  • A multi-hop relay voice communication method for ultrashort wave radio stations

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Embodiment Construction

[0034] The embodiments and effects of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] refer to figure 1 , the present invention proposes a voice communication method based on multi-hop relay of ultra-short wave radio,

[0036] Step 1: The transmitting end collects the original voice data, converts the original voice data into digital voice signals through analog-to-digital conversion, uses low-speed voice coding based on mixed excitation linear prediction to compress and encode the digital voice signals, and compresses and encodes the original voice data according to the following steps: IP data transmission format is encapsulated to obtain original voice data packets suitable for multi-hop relay transmission;

[0037] The supporting terminal of the sending end collects the original voice data, and the original voice data is converted into a digital voice signal through A / D, and the present invention applie...

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Abstract

The invention discloses a communication method for multi-hop relay voice of an ultrashort wave radio station. Under the limited wireless link bandwidth, using the transmission characteristics of the IP data of the ultrashort wave radio station, the 2.4Kbps voice coding based on the mixed excitation linear prediction of the Android system platform is selected. , encapsulated according to the IP data transmission protocol, and the receiving end adopts dynamic waiting delay to protect the voice transmission reception under the dynamic change of the link, which can solve the problem of dynamic change of transmission rate or deterioration of channel quality in the mode of UHF radio ad hoc network Intermittent problem of voice reception and playback caused by discontinuous data transmission in the environment; it ensures the continuity and integrity of voice playback under the environment of multi-hop relay dynamic link environment.

Description

technical field [0001] The invention belongs to the technical field of voice communication, and in particular relates to a communication method for multi-hop relay voice of an ultra-short wave radio station. Background technique [0002] The traditional ultra-short wave radio takes voice and data transmission as its core functions. Voice communication is to complete the acquisition and reception of voice through the equipped receiver. In terms of data transmission, it is usually equipped with a computer, which is less portable. The transmission of voice and data adopts separate equipment, which is inconvenient to operate. In terms of application scenarios, ultra-short-wave radios are mostly used for short-distance communication. During long-distance communication, the communication distance of voice can be extended by increasing the transmission power of the ultra-short-wave radio, changing the form of the antenna, and using relay stations. It is difficult to ensure reliab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L69/06H04L69/164H04B7/155G10L19/087
CPCH04L69/06H04L69/164H04B7/155G10L19/087
Inventor 陈晨王蕴王陈春舒敏张亦希韩宇华王业芳常浩宇仇妙月
Owner 西安烽火电子科技有限责任公司
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