有限字长效应 meaning in Chinese
finite word length effects
Examples
- Analysis of finite - precision effect of tdnlms adaptive predictor and its application in digital filter design
自适应预测器有限字长效应分析及其在设计中的应用 - An ideal system can be implemented in different but equivlent realizations theoretically , however , due to the finite word length ( fwl ) effects resulting from actual devices , modules or subsystems , the system performance will always deviate from the ideal performance in practice
从理论上讲，一个理想系统可以有许多种完全等价的实现方案，然而，在用物理元器件、模块或子系统实现系统时，由于存在着有限字长效应，实际系统中的性能往往要偏离理想性能。 - In chapter 4 we discuss the design of the high speed and high performance vlsi and its imp1ementation , firstly we ana1yze and compare the features and ru1es of al1 kinds of fft algorithm , adopt complex radix 4 butterfly calcu1ation as basic alu , then discuss all kinds of process architectures , the design thoughts , rule , method , technique way , the characteristics of the design are r4 dit algorithm , pingpong ram design method and pipeline structure between stages . we also analyze the limited word length effect and the method to avoid overflow of the fixed points fft process , bring out the expandable platform mode
第四章主要讨论了高速高性能的快速傅立叶变换处理器的设计和实现，首先分析和比较了各种快速傅立叶变换算法的特性和规律，提出基4蝶算的算法具有最好的性价比，讨论了顺序、级联、并行和阵列的处理结构，阐述了设计高速高性能快速傅立叶变换处理器时的设计原则、设计思路、所采用的技术路线，验证并测试fft处理器，分析了定点fft处理过程由于有限字长效应所产生的量化误差的范围及防溢出控制办法，提出了可扩展平台模式。 - At first , the thesis discusses the hardware implementing arithmetic of fast fourier transform ( fft ) and some correlative problems need to be solved . and according to the thesis " design demand and characteristic of large - scale programmable logic device ( pld ) , the thesis designs an implementing scheme of fft processing machine based on pld
首先，论文研究了快速傅立叶变换( fft )的硬件实现方法以及有限字长效应等问题，并根据论文的设计要求和大规模可编程逻辑器件的特点，设计了一个基于可编程逻辑器件的fft处理机实现方案。 - First , the implementation project of the if digital receiver of tdrss user transponder by the fpga and dsp cooperation design method is proposed in this thesis . then , the software simulation system for the if digital receiver is built up , definite word - length effect is analyzed , and some useful conclusions are derived , which provides reference for the following hardware design and debug
本文首先采用fpga与dsp协同设计的方法实现该接收机的方案，然后建立了该中频数字接收机的软件仿真系统，对有限字长效应进行分析，得到了一些重要结论，为下一步的硬件设计和调试提供了参考。