查询词典 noise-power-ratio

One disadvantage of this method of stabilization is the additional output noise and offset voltage caused by increased amplification of input-referred voltage noise and input offset voltage.

这种稳定方法的一个不足是：输入端的有关电压噪声和失调电压增大会额外地增加输出噪声和失调电压。

At first the definition of prediction values of system, network model, prediction model are given, then the stochastic approximation character of the system including simple system noise when identified by a network model using seriesparallel scheme is analyzed as well as the effect of noise on the model multi-step prediction is discussed.

首先对系统、网络模型、预报模型的各种预报值作了定义，然后针对只含简单系统噪声的系统讨论了在串-并联辨识方案下模型对系统一步预报的概率逼近特性，并分析了噪声对模型多步预报的影响。

A filtering algorithm for SMN is developed under the condition that the multiplicative noise is in the form of a general stochastic matrix and each component of the multiplicative noise matrix is correlated at the same time.

该算法保持了线性最小方差意义下是最优的特点，同时提高了数值鲁棒性。

For the multi-channel system with multiplicative noises under multi-sensor observation an optimal fusion estimation algorithm is proposed on the conditions that the multiplicative noise is in the form of a general stochastic matrix and the measurement noises of each sensor are correlated with the dynamic noise.

第二，本文针对多传感器观测下的多通道带乘性噪声系统，在乘性噪声为一般矩阵且各个传感器的观测噪声分别与系统的动态噪声同时刻相关的条件下给出了状态最优滤波融合算法、最优固定域平滑算法及最优固定域反褶积算法。

For the sake of the noise control of automotive noise,an improved method is presented through some muffler of a subminiature truck tests on an engine test bed.

以控制汽车加速噪声为背景，通过对某微型卡车排气消声器的测试分析结果，提出相应的改进措施。

All the noise existing in the sulfuration process are unified as one kind noise, and the control system is self-adaptive in the process.

该控制策略的目的是提高硫化控制的精确性和控制的实时性，同时为大规模、集群化硫化制品生产提供一条智能控制的途径。

This paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively.

分别讨论了在理想假设和实际情况下超外差接收机的双边带噪声系数和单边带噪声系数，给出了单边带接收机的某些设计方案。

The model of range error resulting from systematic noise, mainly photon noise, is analyzed.

讨论了基于距离图像的ALV三维视觉障碍检测的算法与并行实现。

The reason is that every methods ,based on second-order statistics, impose many preconditions for signals and geological models, like supposing pratical signals are Gauss ones, noise is Gauss white noise, and telluric system is linear non-minimum phase one. But practical situations are not like this.

其原因是基于二阶统计量的各种方法，对信号和地质模型作了许多假设和要求，如假设信号为高斯信号，噪声为高斯白噪声，大地系统为线性非最小相位系统，但实际情况并非如此。

According to the characteristic difference between short-time dynamic signal and stationary noise background, this paper presents a novel LMS adaptive algorithm to be whitened stationary noise background based on AR model theory of time series.

根据短时动态信号与平稳背景噪声的特徵区别，以时间序列的AR模型理论为依据，导出背景噪声自适应白化滤波器的结构，并用变步长LMS算法实现自适应滤波。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。