噪声方差 meaning in English
nv noise variance
Examples
- Simplified gauss - markov estimate with singular noise variance
估计在噪声方差矩阵不可逆时的化简 - This thesis has improved the original estimation algorithm gave by mr zhou , and exended to the estimation of the snr of awgn channel and rayleigh fading channel
本文把这种算法应用到awgn信道和单径瑞利信道下对信噪比或信道噪声方差进行估计。 - The dynamic model in the spherical coordinate is presented for bearing - only target positioning . however , such model has unknown covariance of process noise , which is related to the range between the target and the passive sensor
简要概述被动定向跟踪，推导了球坐标系下的匀速运动目标的定向跟踪模型；状态建模的不完备性引起了模型噪声方差阵带有未知径距参数，因而需要解决参数在线辨识问题。 - ( 2 ) a method of regarding the target speed constraints as additional measures and addsing it to measure equation is presented , the constraints intensity is decided by noise variance . it can improve the location precision of the modified gain extended kalman filter
2给出一种把运动目标(敌舰艇)的航速约束当作增加的测量值加入到测量方程的方法，约束的强度由约束条件的噪声方差确定，可提高修正增益推广卡尔曼滤波定位算法的定位精度。 - A novel method for multi - scale denoising based on wavelet transform is given in chapter 2 . the new method improves the threshold - processing algorithm and present the form of white noise standard deviation at each scale . simulations show that while getting rid of noise mostly , this algorithm keeps the main edges of signal well
该算法对常规阈值方法进行了改进，给出了各尺度上噪声方差的计算公式，对多个非平稳信号消噪问题进行了对比仿真研究，仿真结果表明该算法不但能进一步提高非平稳信号的消噪精度，而且能保留信号主要细节。