通信系統(tǒng)非線性問(wèn)題研究及模型建立
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摘 要

在計(jì)算機(jī)網(wǎng)絡(luò)和通信領(lǐng)域中存在很多非線性的問(wèn)題。非線性問(wèn)題給通信網(wǎng)絡(luò)帶來(lái)了許多不確定的因素，從而降低了網(wǎng)絡(luò)穩(wěn)定性和可靠性。
計(jì)算機(jī)網(wǎng)絡(luò)中服務(wù)器和計(jì)算機(jī)終端在某個(gè)時(shí)刻的CPU資源的占用時(shí)間的變化量，或是服務(wù)器在某個(gè)時(shí)刻的訪問(wèn)量。通信系統(tǒng)中由于噪聲干擾而引起的信號(hào)的非線性失真和通信網(wǎng)絡(luò)數(shù)據(jù)分組間隔的時(shí)間△t的變化。都是非線性問(wèn)題的表現(xiàn)形式。
通過(guò)對(duì)非線性問(wèn)題進(jìn)行研究，總結(jié)出各種非線性問(wèn)題的數(shù)學(xué)特征，然后通過(guò)建立數(shù)學(xué)模型（泊松分布，正態(tài)分布等）的方法，對(duì)所研究的非線性問(wèn)題建立數(shù)學(xué)模型，從而增強(qiáng)網(wǎng)絡(luò)和通信系統(tǒng)的穩(wěn)定性。


關(guān)鍵字：非線性，數(shù)學(xué)模型，穩(wěn)定性，可靠性
Abstract

There are many issues about the non-linear in the area of computer network and telecommunications. This issues brings a lot of uncertain factor. thereby, it can reduce the network stability and reliability.
The change amount of server and computer terminal’s CPU resource occupancy time at one moment in the computer network, or the number of users access to the service. the signal’s non-linear distortion result from the interfere of noise .the change of △t about data packets time distance ,all this is the issues of non-linear.
By researching the issues of non-linear, and we can conclude some numeric characteristic about the issues, then found a mathematic model to summary the non-linear issues. Thereby the network and communication system’s stability could be enhanced.

keyword：non-linear，mathematic model，stability，reliability
參考文獻(xiàn)
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