Filtering method for optimizing parameters by adopting genetic algorithm and nonlinear convex programming theory

Abstract

The invention relates to the field of mobile communication, and aims to provide a filtering method for optimizing parameters by adopting a genetic algorithm and a nonlinear convex programming theory. Compared with the conventional digital wireless relay amplification equipment application technology, the method comprises the following steps of: transmitting digital baseband global system for mobile communications (GSM) transmitting signals to a digital GSM filter for frequency selecting filtration, optimizing and calculating the parameters of the filter in advance according to the genetic algorithm and the nonlinear convex programming theory in the process of outputting the filtered GSM baseband signals, and performing frequency selecting filtration on the GSM low-range digital baseband signals by using the novel GSM filter. According to the method, parameter symmetry and linear phase characteristics are not strictly required but compromised by using a series of cost functions, so that the limited degree during parameter optimization is broadened; and by introducing the genetic algorithm for solving nonlinear planning, the optimization effect is further promoted, so that the design result is greatly superior to that of the prior art.

Description

technical field [0001] The invention belongs to the field of mobile communication. It specifically relates to the field of mobile communication wireless relay amplification equipment using filters, in particular a filtering method using genetic algorithm and nonlinear convex programming theory to optimize parameters. Background technique [0002] With the increasing development and popularization of mobile communication digital technology, the digitalization and intelligentization of communication network optimization equipment has become an inevitable trend of current network construction and optimization. [0003] Current digital wireless relay amplification equipment usually adopts digital filtering technology. In order to ensure the out-of-band resistance index, it is usually implemented at the expense of system delay. In the mobile communication GSM standard network, the problem of multipath in the mobile communication network will introduce a delay dispersion problem....

AI Technical Summary

Problems solved by technology

[0035] Because the traditional filter design method is set to be strictly linear phase, and the filter is correspondingly symmetrical about the center, the configuration flexibility of the filter is affected, and the design complexity is virtually increased, such as passband fluctuation, transition bandwidth, stopband attenuation, Performance such as group delay is difficult to achieve simultaneous optimization

Images