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Diverse wireless channel analysis platform based on antenna radiation directional diagram and method thereof

A technology of antenna radiation and wireless channel, which is applied in wireless communication, diversity/multi-antenna system, network planning, etc., can solve the problems of low number of antennas, low accuracy of channel analysis, antenna array scale and implementation limitations, etc., and achieve reduction of requirements, The effect of eliminating mutual coupling

Inactive Publication Date: 2010-01-20
TONGJI UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve many disadvantages of the existing channel test platform, such as the actual limitation of the scale and realization of the antenna array, the low precision of channel analysis due to the low number of antennas, and the fuzzy discrimination of time and space information, etc., to provide A wireless channel analysis platform and method based on the diversity of antenna radiation patterns to analyze wireless channels more accurately

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  • Diverse wireless channel analysis platform based on antenna radiation directional diagram and method thereof
  • Diverse wireless channel analysis platform based on antenna radiation directional diagram and method thereof
  • Diverse wireless channel analysis platform based on antenna radiation directional diagram and method thereof

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0061] The wireless channel test platform is mainly composed of two parts: the channel test system and the channel analysis system. The channel test system completes the front-end data collection and storage, and the channel analysis system performs post-processing, analysis, parameter extraction and other operations on the collected channel response. In terms of structure, the wireless channel analysis system based on the diversity of antenna radiation patterns (such as figure 1 shown) which mainly includes:

[0062] Synchronization equipment (atomic clock): provide synchronization signals for the system, so that the transceiver equipment is in a synchronized state;

[0063] Antenna control unit: provide the system with a synchronous reset signal and control signals required for antenna beam scanning;

[0064] Rotation controller (PTZ contr...

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Abstract

A diverse wireless channel analysis platform based on antenna radiation directional diagram and a method thereof are disclosed; a transmitting antenna and a receiving antenna are respectively fixed at certain positions in the space and transmits and receives data through different radiation directional diagram of the antenna, the diversity of the antenna radiation directional diagram is used as a sampling space of the wireless transmission channel response on the space domain, and simultaneously high precision parameter estimation algorithm is used for obtaining detailed features of the wireless transmission channel in the directions of incident and exit through a manner of array signal processing, and conclusion and model construction are carried out on the feature of the wireless transmission channel by combining the feature estimation results of the channel on the time domain and time delay domain. The invention eliminates the fuzzy judgment problem of time and space of the traditional channel analysis method and improves the preciseness of channel analysis.

Description

technical field [0001] The invention belongs to the field of broadband wireless communication, relates to feature extraction and parameter estimation methods of multiple transmission multiple reception (MIMO) wireless channels, and can be widely used in MIMO wireless channel testing and modeling. Background technique [0002] Multiple paths (or multiple channels) of MIMO wireless channels can provide greater information capacity, and this additional capability can be used to increase data rates and data redundancy, thereby increasing the chance of complete restoration of information at the receiver. The wireless channel is usually a complex scattering channel rich in multipath. The multipath propagation causes the signal to expand in different dimensions. The diversity and variability of the environment also make the wireless channel have great randomness and time-varying. Wireless channel analysis and modeling bring certain difficulties, especially for MIMO wireless channel...

Claims

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Application Information

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IPC IPC(8): H04W16/22H04W16/28H04W24/08H04B7/02
Inventor 尹学锋刘富强周毅王平
Owner TONGJI UNIV
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