Estimation of the maximum Doppler spread or, equivalently, the speed of the mobile, is of an essential importance for the optimization of receiver algorithms.
估计最大多普勒频移或者是移动台的速度对于优化接收机的性能至关重要。
A high precision and high performance servo-drive system needs a rotating speed estimation algorithm which has high accuracy, fast response and high resolution in a wide range.
高精度高性能的伺服驱动系统需要在宽范围内有精度高、响应快及分辩率高的转速估计算法。
Methods 243 seafarers and 89 college students in navigation department were selected to undergo speed estimation under 4 experimental conditions with EP509 speed perception testing instrument.
方法用EP509速度知觉测试仪对243名海员和89名航海专业的学员进行了4种实验条件下的速度估计测试。
The experimental results show that this method has the advantages of robustness, global optimality and high convergent speed and it is feasible for optical flow estimation of nonrigid body.
实验结果表明：本方法具有鲁棒性好、全局搜索能力强、收敛速度快和可用于非刚性体运动估计等优点。
In a speed sensorless vector control system, the precision of speed estimation is relied on the precision of motor parameter.
在无速度传感器矢量控制系统中，转速估算的精度在很大程度上依赖于电机参数。
The accuracy of vehicle reference speed estimation is crucial to the estimation of nominal yaw rate and thus to the judgment of the vehicles dynamic state.
参考车速的计算准确与否直接影响名义横摆角速度的估算是否准确，从而影响对车辆运动状态的判断。
From the analysis results it is shown that the computation speed of the algorithm can be increased by applying measurement transformation technology, but the estimation accuracy will be sacrificed.
从文中分析可以看出，量测变换技术的应用虽提高了算法的运算速度但牺牲了估计精度。
The speed adaptive scheme of speed estimation is obtain utilizing Lyapunov's stability theory.
定义了李亚普诺夫函数，根据其稳定性理论确定了速度自适应律。
By improving the game of search area changing a nd selection of start point, the method increases the estimation speed, and thus the precision is ensured.
该方法根据运动估计的特点，对传统的模拟退火算法初始点的选取、搜索策略等进行了改进，在保证估计精度的前提下，提高了估计速度。
A novel method for speed and rotor position estimation of BLDCM, which applies extend Kalman filter (EKF), is presented in this paper.
本文提出了一种利用扩展卡尔曼滤波器算法来估计BLDCM的转速和位置的方法。
The speed estimation is core question of the speed sensorless direct torque control system.
速度辨识是无速度传感器直接转矩控制的核心问题。
An improved speed estimation method is proposed based on the speed of model reference adaptive system.
根据模型参考自适应的速度推算，提出了一种改进的速度推算法。
A rotor flux oriented control scheme is implemented in a digital signal processor system to demonstrate the robustness of the speed estimation to parameter variations.
在数字信号处理器系统演示的速度估计的稳健性参数变化的转子磁场定向控制计划的实施。
The veracity of rotor flux orientation is also improved though the speed estimation.
通过对转速的估计，间接矢量控制中转子磁场定向的准确度也大大提高。
This paper introduces the theory of vehicle speed detection based on loop coil, analyzes the present speed estimation methods using the basic outputs of single loop detectors.
简述了基于环形线圈车速检测的基本原理、目前利用单线圈检测量进行车速估计的方法。
It introduces many kinds of speed observe models especially, then selects the speed estimation scheme based Kalman filter after comparing a great deal of schemes of distinguishing rotational speed.
重点介绍多种速度观测模型，并在比较诸多速度辨识方案后，采用基于卡尔曼滤波的速度估计方案。
The real vehicle tests indicate that the filtered wheel speed signal has small time delay and quick response with relatively ideal smoothing effects and can be used for direct speed estimation.
实车试验表明，滤波后的轮速信号延时小，响应速度快，平滑效果比较理想，可以用来直接估计车速。
The accuracy of the rotor speed estimation in speed sensorless vector control system of induction motor under load is sensitive to parameter errors of the internal machine model.
在感应电动机无速传感器矢量控制系统中，在负载条件下转子速度估计的精确度对电机内部模型参数误差非常敏感。
Simulation results show that the system has better control performance and estimation effect, but the influence of parameters variation on speed estimation error is evident.
仿真结果表明该系统有较好的控制性能和辨识效果，但参数变化对速度辨识误差有明显的影响。
Meanwhile, a slight AC component was added to excitation current to decoupling speed estimation and rotor resistance.
同时，为了使转速估计和转子电阻的辨识解耦，在励磁电流处叠加了小幅交流分量。
Two problems must be solved in the speed sensorless Field Oriented Control of induction motor drive: the speed estimation and rotor flux observation.
异步电机无速度传感器矢量控制系统需解决两个问题：转速的估计和转子磁链的观测。
To improve the accuracy and speed in cycle-accurate power estimation, this paper USES multiple dimensional coefficients to build a Bayesian inference dynamic power model.
为改善周期精确级功耗分析的准确度和速度问题，使用多维特征参数建立贝叶斯推理的动态功耗模型。
Simulation results show that the EKF can give the accurate estimation of rotor speed and flux in all drive range, and the proposed control scheme processes the perfect dynamic and static performance.
仿真结果表明EKF可在整个调速范围内进行高精度的转速和磁链估计，控制系统具有优良的动态和稳态性能。
The closed loop control strategy by model tracking2-freedom rotation speed and the sight-based velocity estimation method are introduced.
提出了模型跟踪2自由度转速闭环控制策略和基于观测器的车速估算方法。
This paper presents a model of speed estimation for the direct torque control system. This model which has high response performance is based on the analysis of the theory of DTC.
本文在分析感应电动机直接转矩控制理论的基础上，推导出电机瞬时转速的估算模型，该估算模型具有快速跟踪真实值的优点。
The occlusion paradigm was applied to investigate the time-to-collision (TTC) estimation of full-time bus drivers under the conditions of vehicle types, speed and directions of the moving objects.
本研究采用遮挡范式，考察了专职公交车驾驶员对不同类型、速度和方向运动物体的碰撞时间(TTC)估计。
The sampled stator voltages and currents were conversion to digital quantity and given to speed estimation system for estimating speed, then contrast it with the actual measured motor speed.
将采样得到的电机定子电压和电流转换为数字量后输入到转速估计系统来估计转速，并跟实际测得的转速进行对比。
In this paper, a VLSI architecture for channel estimation and cyclic restoration in TDS-OFDM is proposed. The realization of cyclic correlation introduced is high-speed and low-cost.
针对TDS - OFDM系统的信道估计与数据循环化算法提出了一种硬件实现架构，其中循环相关的实现架构速度快且节省硬件资源。
A new general arithmetic to design speed estimation arithmetic of asynchronous motor based on the absolutely stability theorem of nonlinear system is introduced.
基于非线性控制系统的绝对稳定性定理，提出了一种新的通用异步电机转速自适应辨识方法。
A new general arithmetic to design speed estimation arithmetic of asynchronous motor based on the absolutely stability theorem of nonlinear system is introduced.
基于非线性控制系统的绝对稳定性定理，提出了一种新的通用异步电机转速自适应辨识方法。
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