查询词典 simulation

Simulation results show that the theoretical BER formula corresponds well with the experimental ones. The effect of power control on the system under different ultra wideband channel is also studied through simulation, showing that imperfect power control will lead to the decrease in system data rate, and that performance in line of sight channel often outdoes that in the NLOS channels.

此外，还分析了在不同的室内密集信道下功率控制对系统数据速率的影响，结果表明，非精确的功率控制将导致系统的误码率及数据速率的下降，且可视距信道中的性能好于非可视距信道中的系统性能。

This simulation model has the properties of visibility, simplicity and the simulation result outputting is easy.

针对目前液压系统动力学模型建模方法的复杂性，提出了基于MATLAB语言环境下的面向液压系统原理图的直接建模方法。

An approximative mathematical model of the temperature controlling system has been constituted and simulated with various controlling strategy, according to the demanded function of the running Microwave Heating Asphalt Pavement Regenerate Repairer. From the result of simulation, it suggests that FPID Controller, which is of superior anti-jamming capability, overmatches Ordinary PI Controller, Traditional PID controller and Integration Separation PID Controller in dynamic characteristic. Consequently, this simulation of model offers a kind of valid method for the constitution of complicated system.

根据沥青路面修复要求实现的功能建立了温度控制系统的近似数学模型，对系统先后进行各种控制仿真，通过仿真发现，系统中模糊整定PID控制算法的动态性能比PI、PID和可积分分离的PID控制的性能要好，且具有较强的抗干扰能力，为复杂系统建模提供了一个有效途径。

The key of the simulation is to select a suited set of models and parameters which represent the motion and the echo of moving targets, Because the perform of microwave radars operating over the moving targets is very complicated.In this paper, we discuss how to simulate the motion of targets with a method of parameters simulation. And then we get a track clearly through controlling the flight parameters and the time increasing. The way reduces the error.This paper also particularizes the prime parameter of the echo--Radar Cross Section which is influenced by many factors.

对于目标的实时运动特性，本文采用了航迹的参数模拟法，通过控制目标的飞行性能参数与时间增量的大小来模拟目标的真实运动，避免了多种因素所引起的飞行误差，效果良好；此外，本文详细分析了表征运动目标回波特性的雷达截面积与雷达波长、目标姿态、极化方式及视角的关系，在此基础上，考虑了RCS的两种起伏特性以及天线对其的调制作用，得出了快、慢起伏目标回波的仿真数据，并对二者进行了比较。

Aiming at the great calculating amount in simulation to ocean wave, advance a real-time protracting eyeable trapezium to keep the real-time simulation and vivid vision effect.

同时针对海浪仿真中计算量大的问题，又提出了一种实时绘制可见梯形范围技术解决海浪仿真中数据量大的问题，确保仿真实时和逼真的视觉效果。

This chapter is separated into two parts. The first part introduces the encode and decode scheme which applies the TCQ in DCT field, then corresponding implement algorithm and its simulation are given. The latter part excludes the operation that quantizes only one pixel every time, and adopts the VQ method, then brings forward the TCVQ algorithm in DCT field. Finally corresponding implementation algorithms along with its simulation results are given.

本章分成两部分第一部分详细介绍了运用DCT域TCQ方法进行编码、解码的方案，并提出具体实现算法和进行了仿真计算；第二部分在DCT域TCQ基础上，摈弃在DCT域单个量化的做法，采用矢量量化的方法，提出了DCT域TCVQ的实现算法，同时也进行了仿真。

The speech semaphore analogs wave form and delivers a speech through IP method and ignore to is a real time appliance a traffic still a non- real time applied traffic, the pass looks shore wants to steer a simulation data convert to the speech semaphore first, is also vs simulation the speech semaphore steer 8 or 6 quantizes, then send go into to buffer store ward amid, the dimension of dampener can be sur the request select of the delay and the encode.

语音信号是模拟波形，通过IP方式来传输语音，不管是实时应用业务还是非实时应用业务，道貌岸首先要对语音信号进行模拟数据转换，也就是对模拟语音信号进行8位或6位的量化，然后送入到缓冲存储区中，缓冲器的大小可以根据延迟和编码的要求选择。

By studying the numerical simulation technology of sheet metal formation in recent decades,the article puts forward a method for redeveloping friction model of numerical simulation of sheet metal formation on the basis of ABAQUS.

对近年来兴起的板料成形过程数值模拟新技术研究，提出了一种基于ABAQUS的板料成形数值模拟摩擦模型的二次开发及实现的方法。

The design of production logistics simulation system of reheating furnaces is introduced and the analyse of simulation results.

研究连续步进式加热炉炉群生产仿真系统的设计，着重分析仿真结果，得出了在热送热装条件下生产计划和加热炉生产的若干特点和规律。

After considering specialties of modern avion simulation training, this thesis discusses requisitions of the modern avion simulation system.

从现代军机飞行仿真训练的特点出发，分析了现代军机仿真系统的要求，以实例论述了现代军机仿真系统的系统构成和软件划分，并论述了主要模块的功能及技术特点。

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％。