在GPS控制测量中,由于各种因素的综合干扰,造成GPS卫星接收机接收的卫星信号减弱,并伴随各种噪声。研究设计了一种新的量子遗传算法,根据数学形态结构元素参数特点初始化量子遗传种群,通过量子交叉、变异以及基于膨胀系数的量子旋转门...在GPS控制测量中,由于各种因素的综合干扰,造成GPS卫星接收机接收的卫星信号减弱,并伴随各种噪声。研究设计了一种新的量子遗传算法,根据数学形态结构元素参数特点初始化量子遗传种群,通过量子交叉、变异以及基于膨胀系数的量子旋转门实现种群的演化进程,进而对卫星信号进行去噪处理并降低基线残差来提高基线解算精度。以武警黄金第十二支队在甘肃阳山金矿采集的GPS数据为基础,采用3种方法对卫星信号进行去噪处理,通过对比发现新的遗传算法能将噪声信号的信噪比由-0.92 d B提高到5.11 d B。展开更多
GA-GP is an algorithm for dealing with all kinds of nonlinear function relationships and fraction relationships, which use GP(Genetic programming) to create new individuals and GA(Genetic algorithm)to optimize them at...GA-GP is an algorithm for dealing with all kinds of nonlinear function relationships and fraction relationships, which use GP(Genetic programming) to create new individuals and GA(Genetic algorithm)to optimize them at the same time. In this way we make full advantage of GA and GP. We discuss the application of this algorithm in quantitative structure-activity relationships(QSAR) in the medicinal field. The result shows that GA-GP is better than ANN and mathematical expressions could be obtained. Expressions clearly express and explain QSAR of the medicine. All can show GA-GP has very wide applications in the medicinal field of the molecule design.展开更多
文摘在GPS控制测量中,由于各种因素的综合干扰,造成GPS卫星接收机接收的卫星信号减弱,并伴随各种噪声。研究设计了一种新的量子遗传算法,根据数学形态结构元素参数特点初始化量子遗传种群,通过量子交叉、变异以及基于膨胀系数的量子旋转门实现种群的演化进程,进而对卫星信号进行去噪处理并降低基线残差来提高基线解算精度。以武警黄金第十二支队在甘肃阳山金矿采集的GPS数据为基础,采用3种方法对卫星信号进行去噪处理,通过对比发现新的遗传算法能将噪声信号的信噪比由-0.92 d B提高到5.11 d B。
文摘GA-GP is an algorithm for dealing with all kinds of nonlinear function relationships and fraction relationships, which use GP(Genetic programming) to create new individuals and GA(Genetic algorithm)to optimize them at the same time. In this way we make full advantage of GA and GP. We discuss the application of this algorithm in quantitative structure-activity relationships(QSAR) in the medicinal field. The result shows that GA-GP is better than ANN and mathematical expressions could be obtained. Expressions clearly express and explain QSAR of the medicine. All can show GA-GP has very wide applications in the medicinal field of the molecule design.
