查询词典 dsp

Firstly, this dissertation introduces the development, design principles and evaluation methods of Human-Computer Interaction technology.

本文首先介绍了人机交互界面技术的发展、设计原则和评价方法，并对现有Linux平台下若干集成开发环境进行考察与比较，在此基础上提出了基于VP6 DSP的C语言集成开发环境的设计原则。

In order to fit the need of complex and multi-function, this system uses a dual processor project, in which DSP is the hypotaxis processor, and single chip computer is the main processor.

文中还介绍了系统通信模块的设计和通信协议的约定，以及遥测、遥控和遥信功能的实现方法。

The image acquiring is made of four departs:audio input;(2)audio decode;(3)image buffer;(4)image acquired.And iamge recongnizing is made of two parts:image recongnized ;(2)the result display.

为了提高纸币号码图像的读入和识别速度，本系统采用了DSP来完成纸币号码图像的采集和对号码图象的识别处理。

The means has been succeed in DSP system and can be used in other subject with parallel communication.

该电路设计已成功应用于信号处理系统并可以应用到利用并口进行通讯的其他课题中。

The algorithm is applied on TMS320DM6437 DSP, and the experimental results show that for a 768 pixels ×494 pixels image, the correction time is 0.036 s. The correction error is within 0.31 pixel and the edge information loss and inanition are effectively avoided.

将该算法在TMS320DM6437DSP上实现，实验结果表明，校正一幅像素为768×494的图像所用的时间为0.036s，畸变校正的误差在0.31个像素以内，有效地避免了边缘信息丢失、空洞及灰度失真现象。

In this paper, the design method of the induction motor full digital AC control system is also introduced. The software and hardware implementation of the system is discussed in detail.

论文最后介绍了基于DSP的全数字交流电机控制系统设计方法，给出了该系统的软硬件设计方案。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

The flux computation is a static process without problems such as initial values and error accumulation.

基于实际控制系统，以Matlab和DSP为工具，提出2种检验方法，相互印证，检验了该算法的正确性。

Second, the paper discusses a new method that is based on the technology of fuzzy maths image intercepting.

为了提高图像的处理速度，完成实时处理任务，本文进行了并行计算体制和DSP芯片应用的研究。

Based on optimizing the interleave algorithm of 3GPP, a turbo encoder is implemented using FPGA technique.

在对3GPP的交织算法进行优化的基础上，基于FPGA技术实现了Turbo码编码器；在对用Max-Log-MAP算法进行优化的基础上，基于DSP技术实现了Turbo码的译码器；最后通过接口实现了一个完整的Turbo码编、译码系统。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！