The Receiving Technology Of Uwb In Non-gaussian Noise

In recent years, Impulse Radio Ultra wide band communication has broad prospects for application, and gradually becomes a hot research for scholars because of its high efficiency of space spectrum, high accuracy of distance measurement, low probability of interception, the capacity of resistance about multi-path fading, very low power, very low cost, very small size, and so on. However, the channel of IR-UWB communication has the characteristics of intensive multi-path, result in a challenge that the receiver receive the signal effectively. At present, it's not enough in-depth to study the receiver for IR-UWB, Especially in the absence of enough research under such conditions that the noise is non-Gaussian, Thus limit its application in the broader fields.The thesis aims to study the effective receiver for IR-UWB communication under non-Gaussian noise. The thesis also aims to provide reference for more in-depth theoretical research of IR-UWB, to contribute for more application within the broader fields of IR-UWB communication.The process of this thesis is:1) Firstly the thesis study the characteristics of IR-UWB communication system, the features of non-Gaussian alpha stable noise and the myriad filtering algorithm which aim at the alpha stable noise. Then according to the IR-UWB communication channel characteristics that intensive multi-path and four channel models, propose the effective receiver which can receive the signal well, and the simulation show that this method is simple and effective.2) Considering that there are a large amount of ISI when the bits speed is high, propose self-adaptive equalization receiving method under non-Gaussian alpha stable noise, do a lot of experiments about the condition of various channel models, and get the equalizer's parameters configuration, and then improve the method, make the receiver can automatically change parameters of equalizer under different channels. Finally the simulation show that the performance of this method.This thesis has designed the simulation methods to study the receiver for IR-UWB communication deeply, to optimize the equalizer of the receiver, and to solve the problem that lack of theoretical study under the condition of non-Gaussian noise and this provide the theoretical reference to apply equalizer under that condition. This method also provides the reference to use IR-UWB communication within more fields, and have a certain reference value.