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Concurrent process method and system for blind deconvolution of digital signals

A digital signal, synchronous processing technology, applied in digital transmission systems, transmission systems, baseband systems, etc., can solve problems such as the highest rate limited equalizer, increase transmission speed, etc.

Inactive Publication Date: 2009-09-23
巴西教育与援助协会
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AI Technical Summary

Problems solved by technology

The maximum rate of current digital system transmission is limited by the operation of the equalizer (see for example [21]), and a synchronous equalizer for blind deconvolution of digital signals will increase its transmission speed

Method used

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  • Concurrent process method and system for blind deconvolution of digital signals
  • Concurrent process method and system for blind deconvolution of digital signals
  • Concurrent process method and system for blind deconvolution of digital signals

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Embodiment Construction

[0061] Solving the overlapping problem of propagation rays and dynamic changes in the transmission channels of digital systems is one of the tough challenges in the high-tech field in the coming years. In mobile communications, it is undesirable that parameters such as delay spread, angle spread and Doppler spread determine the level and dynamics of system-symbol overlap. Such symbol overlap is a result of channel information transmission.

[0062] In particular, overlapping of symbols occurs due to the dispersed nature of the transmission channel of any practical digital system, that is, the impulse response c(n) within the channel will have many non-zero values ​​over many sampling intervals (see reference Literature [1]). The response of a non-dispersive channel to a δ(n) pulse is c(n), which is characterized in that when n d ≥0, there is a pulse δ(n-n d ).

[0063] The dispersion effect of the channel is perhaps easier to understand in terms of the impulse response in ...

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Abstract

The simultaneous processing of blind deconvolution of digital signals aims to eliminate the mutual interference problem between symbols of digital signals, which arises from the dispersion effect of any practical transmission channel. In the transmission channel of the digital system, solving the problem of the overlapping of propagation rays and its dynamic change will be one of the difficult challenges in the development of science and technology in the next few years. In mobile communications, it is undesirable that parameters such as delay spread, angle spread, and Doppler spread determine the level and dynamics of system-symbol overlap as a result of channel information transmission. Instruments used to improve the above performance by synchronous processing of digital signal blind deconvolution include but are not limited to: space-time domain processing, such as for smart antennas and smart sensors, etc.; general digital telecommunication systems, such as mobile phones, Digital TV, digital radio equipment, etc.; telemetry system; remote sensing system; geodesy positioning / measurement system (GPS global positioning system, etc.); navigation equipment system; wave refraction / reflection seismic survey system; magnetic medium storage system; radar system; sonar system.

Description

technical field [0001] The invention relates to a digital signal blind deconvolution system, in particular to a synchronous processing of digital signal blind deconvolution. Background technique [0002] The purpose of the simultaneous process of blind deconvolution of digital signals is to reduce or as far as possible eliminate the problem of inter-digital-symbol interference which arises from the dispersion of any practical transmission channel. Applications and / or devices that improve their performance by using blind deconvolution of digital signals include, but are not limited to: Spatial-Temporal processing, such as for smart antennas and smart sensors, etc.; any digital telecommunications System (mobile phone, digital TV, digital radio equipment, etc.); telemetry system; remote sensing system; geodesy positioning / measurement system (GPS global positioning system, etc.); navigation aid system; wave refraction / reflection seismic survey system; Magnetic media storage sys...

Claims

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Application Information

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IPC IPC(8): H03H7/30H03K5/159H04B7/005H04B3/06H04L25/03
CPCH04L25/03006H04L25/0307H04L25/03019H04L1/00
Inventor 马里亚·克里斯蒂纳·费利佩托·德卡斯特罗费尔南多·塞萨尔·坎帕西·德卡斯特罗达尔顿·苏亚雷斯·阿兰特斯
Owner 巴西教育与援助协会
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