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Fast adaptive balance module for ultra-short wave broadcast station and method thereof

An adaptive equalization, ultra-short wave technology, applied in electrical components, shaping networks in transmitters/receivers, transmission systems, etc., can solve problems such as complex implementation, and achieve fast response speed, low computational complexity, and good communication effects. Effect

Inactive Publication Date: 2009-07-08
CHONGQING JINMEI COMM
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  • Claims
  • Application Information

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Problems solved by technology

However, matrix inverse operations are required during the operation, which makes the implementation complex

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  • Fast adaptive balance module for ultra-short wave broadcast station and method thereof
  • Fast adaptive balance module for ultra-short wave broadcast station and method thereof
  • Fast adaptive balance module for ultra-short wave broadcast station and method thereof

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Embodiment Construction

[0026] In order to meet the design requirements, the present invention adopts the following measures:

[0027] 1. The module adopts a transversal filter (complex Kalman filter 3) structure, self-adaptive processing is the core of equalization, and a fast RLS (Recursive Least Square) algorithm is used to achieve equalization effects that meet the requirements of radio stations;

[0028] 2. The equalization algorithm based on the training code is adopted to ensure that the module can work normally when the hop speed on the ultrashort wave channel is 1000 hops per second; in order not to increase the system overhead, the frequency hopping synchronization head is used as the equalization training code;

[0029] 3. At the beginning of each jump, the synchronization module performs synchronous capture. After capturing the synchronization head, the filter coefficient calculation module starts to work, uses the synchronization head to calculate the filter coefficient, and finally enter...

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Abstract

The invention discloses a fast adaptive equalization module of an ultrashort high-speed radio station, wherein, the adaptive equalization module is inserted between an input terminal of a demodulation module and an output terminal of a down-conversion module. A fast adaptive equalization method of the ultrashort high-speed radio station is also disclosed. The fast adaptive equalization module and the fast adaptive equalization method have the beneficial technical effects as follows: the amount of computation is relatively low, the response speed is fast, the communication effect is good, the capacity for resisting multipath interference is strong, and the utilization demands of complex geographical environments can be satisfied.

Description

technical field [0001] The invention relates to a digital signal processing technology for wireless communication, in particular to a fast self-adaptive equalization module of an ultrashort-wave high-speed radio station and a method thereof. Background technique [0002] The channel bandwidth of ultra-short wave high-speed frequency hopping radio stations is relatively wide, and the delay expansion caused by channel multipath effects has a great impact on system performance. When channel multipath is serious, the system that lacks anti-multipath may even fail to work normally at all. [0003] There are three known means to combat multipath, equalization, spread spectrum, and multi-carrier modulation (OFDM). Spread spectrum communication can separate multipath signals through spread spectrum code correlation. RAKE receivers can also use multipath signals. However, if the multipath time delay spread is greater than the symbol interval before spreading, this part of the multipa...

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Application Information

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IPC IPC(8): H04B1/707H04L25/03
Inventor 杨钊何明利别晓武罗彬阮定良刘中全
Owner CHONGQING JINMEI COMM