在UPF的基础上引入小波变换,假设系统噪声为高斯分布,而知道目标状态的参量如位置、速度等相对于系统噪声而言是处于低频段的,选取重要性函数为转的英语翻译

在UPF的基础上引入小波变换,假设系统噪声为高斯分布,而知道目标状态的

在UPF的基础上引入小波变换,假设系统噪声为高斯分布,而知道目标状态的参量如位置、速度等相对于系统噪声而言是处于低频段的,选取重要性函数为转移先验,这时将从转移先验抽样所得的粒子,通过小波变换进行多层分解获得不同频段的信号成分,然后将反应噪声的高频成分祛除,用剩余的低频信号进行小波重构,获得祛除r部分噪声的粒子,这些重构后的粒子反应的新的转移先验较原来的转移先验有更小的方差,从而可获得更加尖锐的概率密度函数,因而也就降低了重要性权值的方差。
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目标语言: -
结果 (英语) 1: [复制]
复制成功!
The wavelet transform is introduced on the basis of UPF, assuming that the system noise is Gaussian distribution, and the parameters of the target state, such as position, velocity, etc., are in the low frequency band relative to the system noise, and the importance function is selected as the transfer prior. At this time The particles sampled from the transfer a priori are multi-decomposed by wavelet transform to obtain signal components of different frequency bands, and then the high-frequency components of the reaction noise are removed, and the remaining low-frequency signals are used for wavelet reconstruction to obtain the r part of the noise. For particles, the new transition prior of these reconstructed particle reactions has a smaller variance than the original transition prior, so that a sharper probability density function can be obtained, thus reducing the variance of importance weights.
正在翻译中..
结果 (英语) 2:[复制]
复制成功!
Wavelet transform is introduced on the basis of UPF. Assuming that the system noise is Gaussian distribution and that the parameters of the target state such as position and speed are in the low frequency band relative to the system noise, the importance function is selected as the transfer priori. At this time, the particles sampled from the transfer priori are decomposed by wavelet transform to obtain the signal components of different frequency bands, Then, the high-frequency components of the reaction noise are removed, and the remaining low-frequency signals are used for wavelet reconstruction to obtain the particles that remove r part of the noise. The new transfer priors of these reconstructed particles have smaller variance than the original transfer priors, so as to obtain a more sharp probability density function, which also reduces the variance of the importance weight.<br>
正在翻译中..
结果 (英语) 3:[复制]
复制成功!
Introducing wavelet transform on the basis of UPF, assuming that the system noise is Gaussian distribution, and knowing that the parameters of the target state, such as position and velocity, are in a low frequency band relative to the system noise, the importance function is selected as the transfer prior. At this time, the particles sampled from the transfer prior are decomposed by wavelet transform to obtain signal components in different frequency bands, and then the high frequency components of the reaction noise are eliminated, and the remaining low frequency signals are used for wavelet reconstruction. The particles with R noise removed are obtained, and the new transfer priors of these reconstructed particles have smaller variance than the original transfer priors, so that a sharper probability density function can be obtained, thus reducing the variance of importance weights.
正在翻译中..
 
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