modulation system的例句大全

Through the encryption of ameliorative Blowfish algorithm and modulation of multistage chaotic system, the system can generate graph of wav.

通过改进后的Blowfish算法的加密，经过多级混沌同步系统的遮掩调制，产生加密后的音频波形图。

Scraper conveyer motor uses the space vector pulse width modulation ( SVPWM) speed regulating system. This system is not only to get well effect, but to improve utilization of direct voltage in the event that device unchangeableness.

工作部刮板电机采用电压空间矢量脉宽（SVPWM）调速系统，不仅可以得到良好的调速效果，提高有机肥生产质量，还可以在不新增调速设备需求的情况下，提高了直流电压的利用率。

To improve the accuracy of digital MTF ( modulation transfer function) measurement system, two auto-focus evaluation methods ( acutance function method and mean square error function method) are introduced.

为了提高数字式光学传递函数测量的精确度，介绍了2种自动对焦评价方法：锐度函数法和均方差函数法。

Modulation effect of magnesium ion on the adenyl cyclase-cAMP system function

镁离子对腺苷酸环化酶-环磷酸腺苷系统功能的调整作用

It includes the frequency modulation circuit for receiving signals, the demodulation circuit for detecting signals, and the FOTS ( fibre-optic transmission system) for transmiting date.

包括用于完成信号接收的选频接收电路、用于信号检测的检波电路和用于数据传输的光纤传输系统的硬件设计。

In recent years, Frequency Modulation Continuous Wave Radar ( FMCWR) is widely used in many fields for its eminent characteristics, such as high resolution, large dynamic range, low radiant pollution to environment and good performance in anti-jamming, especially for vessel traffic system.

调频连续波雷达（FMCWR）具有分辨率高、信号动态范围大、对周围电磁环境干扰小、抗干扰能力强等特点，得到广泛应用，特别适用于海事交通管制系统（VTS）。

In this chapter, an algorithm of iterative estimating jamming state information is proposed specially for OFDM systems based on linear modulation so as to gradually improve the correct rate of estimating JSI with the iterative estimation and then improve the performance of the whole system.

本章还专门针对基于线性调制的OFDM系统提出了一种迭代估计干扰状态信息的算法。通过迭代估计干扰状态信息，其准确性逐渐提高，从而也提高了整个系统的抗干扰性能。

Analysis and implementation of signal demodulation algorithm for microwave composite signal modulation test system

微波复合调制信号解调算法分析与实现

In this paper, the technique is applied to a digital amplitude modulation broadcasting ( DAMB) system with satisfactory results.

该文把此技巧应用到数字调幅广播（DAMB）系统，取得了令人满意的结果。

QPSK as an advanced digital modulation technique is fit for the digital satellite communication system well.

QPSK作为一种先进的数字调制方式,特别适用于数字卫星通信系统.

Chapter 4 recommends a Turbo coding scheme for digital amplitude modulation broadcasting ( DAMB) system after the introduction of Turbo codes.

第四章在介绍Turbo码的基础上给出Turbo码应用于DAMB系统的推荐方案；

As time-variant multipath channels, the time-variant property of MW and SW channels causes the interchannel interfere ( ICI) between different subchannels of OFDM-based digital amplitude modulation broadcasting ( DAMB) system.

作为时变的多径信道，中短波信道的时变性导致基于OFDM数字调幅广播系统各个子信道间产生干扰，简称ICI。

Loop frequency locking technique in phase modulation spectroscope technique R-FOG system has been researched.

对基于调相谱检测技术R-FOG系统中的环路频率锁定技术进行了研究。

π/ 4 D-QPSK base-band modulation and demodulation method realized by DSP technology is better than FSK, ASK, PSK in technical criterion. It is according to the request of digital honeycomb system.

利用DSP手段，实现的π/4D-QPSK基带调制解调在技术要求方面要优于FSK、ASK、PSK等调制方式，更能满足数字蜂窝系统的要求。

the combination of multi-band modulation and fpga makes the performance of communication system a rapid increase.

多进制 数字调制技术与FPGA的结合使得通信系统的性能得到了迅速的提高.

Design of Gray-Mapped Constant Weight Modulation Code for Digital Holographic Data Storage System

数字全息数据存储系统中的格雷映射等重调制码的设计

Through the experimental test on integration of modulation circuit and demodulation circuit, it indicates that there is high signal-to-noise ratio in the system.

通过对调制驱动电路和接收解调电路组成的激光通信链路的实验测试，表明所设计的光端机具有良好的信噪比。

This paper discussed the based theory of modulation method, demodulation method, the constitution of message source, technological form of signal and pseudo code position of the new-typed system.

详细的讨论了新型NAVTEX系统所采用的调制解调方式、信源的建立、信号的技术格式、伪距导航定位原理等基本的理论。

This paper introduces the architecture of DVB_C system and basic theory of QAM modulation and demodulation at first, analyzing and discussing two ways to implement the initial demodulator: simple sequencer and generating native carrier to demodulate.

本文介绍了DVB-C系统的结构和QAM调制解调的基本原理及其系统结构；分析比较了初始解调电路的两种实现方式：产生本地载波进行解调和简单序列解调。

In the area of aerospace telemetry, Pulse Code Modulation/ Frequency Modulation ( PCM/ FM) system is one of the main plans in strategic weapons and rockets because of its high noise resistance, high flexibility.

在航天遥测领域中，PCM/FM传输体制抗噪声性能强、灵活性高，是国内外战略武器和火箭等的主要遥测手段。