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Wireless fading channel simulation system and method based on spreading Suzuki model

A fading channel, analog system technology, applied in wireless communication, electrical components, network planning, etc., can solve problems such as balance error, clipping, nonlinear distortion, etc.

Inactive Publication Date: 2009-07-15
SHANGHAI UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This uncertainty is due to issues such as non-linear distortion, balance errors, clipping, sampling clock jitter in the DAC

Method used

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  • Wireless fading channel simulation system and method based on spreading Suzuki model
  • Wireless fading channel simulation system and method based on spreading Suzuki model
  • Wireless fading channel simulation system and method based on spreading Suzuki model

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Embodiment Construction

[0061] A preferred embodiment of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0062] see image 3 , the wireless fading channel simulation system based on the extended Suzuki model, including the first signal input interface 3-1, the second signal input interface 3-2, the fading parameter input interface 3-3, the control module 3-4, and the model operation module 3 -5, the first signal output interface 3-11 and the second signal output interface 3-12, the first signal input interface 3-1 is connected to the entrance of a digital-to-analog conversion module 3-13, the second signal input interface 3-2 is connected The entrance of the control module 3-4; an output signal of the control module 3-4 is connected to the model operation module 3-5, and another output signal is connected to a modulating digital-to-analog conversion module 3-14; the model operation module 3 An output signal of -5 is connected to a digital-to-analog...

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Abstract

The invention relates to a wireless fading channel simulated system based on extended Suzuki model and a method thereof. The extended Suzuki computer model is obtained by the approximation of sinusoidal signal distributed sum with finite amplitude weighting and uniform phrase positions and a series of operation through two colored Gaussian noise processes. Meanwhile, the model system takes the influence of the fading of multi-diameter type and shadow type into consideration to simulate a mobile communication fading channel between land and land, and between land and satellite. The simulator realized by the invention adopts a FPGA chip in core part, which has the advantages of automatic input of fading parameters and flexible application.

Description

technical field [0001] The invention belongs to the field of wireless information transmission, and relates to a non-frequency-selective universal wireless channel simulator system and method, especially for the wireless fading channel simulation system and method in common environments. Background technique [0002] Wireless channel simulation has become the subject of many theoretical analyzes and on-site measurements. Designers widely use various channel simulators to debug and test the designed system in the laboratory. According to environmental analysis and statistical data, there are many different mathematical models for mobile wireless channels. However, due to the complexity of mobile wireless channels, many mobile wireless channels are time-varying and fading channels, which are difficult to describe accurately, and it is impossible to establish a single model to cover all conditions. Therefore, it is necessary to summarize a relatively widely used channel model ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18
Inventor 李迎春王世杰韩盛杰李一
Owner SHANGHAI UNIV
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