modulation circuit造句
例句与造句
- A simple structured chaotic modulation circuit for secure communication system
一种结构简捷的混沌调制保密通信系统电路 - Application of scanning velocity modulation circuit in digitalized color tv receiver
扫描速度调制电路在数字化彩电中的应用 - The laser source was modulated by the modulation circuit , so that the fluorescence signal was modulated
信号调制电路通过对传感器系统的激光光源进行调制来调制荧光信号。 - In order to solve the problem of weak fluorescence , the signal modulation circuit and signal demodulation program were designed
针对荧光信号比较微弱的问题,本文设计了光纤倏逝波生物传感器系统的信号调制电路和信号解调程序。 - The author introduces the hardware configuration such as the signal detection and modulation circuit , signal transmitter interface circuit and software flow like signal sampling , scales transformation conversion , signal compensation and so on
介绍了信号检测与调理电路、信号变送器接口电路等主要硬件结构，以及信号采样、标度转换和信号补偿等软件流程。 - It's difficult to find modulation circuit in a sentence. 用modulation circuit造句挺难的
- The modulation circuit utilized the vector modulation technology based on fourth - harmonic mixer . the lo frequency is only quarter of carrier frequency . direct high speed qpsk digital modulation of millimeter wave signal can be realized with fairly simplified lo circuit
调制电路采用了以四次谐波混频器技术为核心的矢量调制技术，利用1 / 4载波频率作为本振信号，实现了对毫米波信号直接进行高速qpsk数字调制。 - In order to reduce the influence of the laser diode ’ s heat effect , a thermal control device is designed to make laser diode work under a stable temperature . the principle and application of ic - wkn is researched adequately . a signal modulation circuit including d / a converter and chip computer is designed
由于温度变化也会影响到半导体激光器的正常工作,为了减小环境温度变化和激光器的热效应对激光器本身及其输出造成的影响,本文将半导体激光器和温度控制装置设计在一起,使激光器能够在恒温下工作。 - The major contents of this part is composed of the basic principle of the if circuit , the affection of the noise performance of the preamplifier to the whole system , the main constitutes of the receiver and their test results and the modulation circuit of the vco , etc . the test result shows that the performance of these circuits is fairly good
内容涉及：中频电路的基本原理及指标，前置放大电路的噪声性能对整个系统性能的影响，接收机的主要组成部分(前置放大电路、 agc放大电路)的基本原理、实现方法、测试结果及分析和vco的调制信号产生电路的实现及测试结果。与前端联调结果表明该部分电路性能良好。 - Realization of the wide - band shaping filter in baseband is carefully analyzed , and then a low - cost realization method is brought forward . furthermore , through shaping filters , i / q route self - synchronization and compensation and revise of the nonlinearity and the imbalance of amplitude and phase of the modulation circuits are advanced
分析了基带宽带数字成形滤波器的实现难点,提出了低代价的实现方法,并利用成形滤波器解决了调制端i / q自动同步,调制电路的各种非线性和幅相不平衡的补偿校正等问题。 - Measurement accuracy of phase - shift laser range finders is up to millimeter level in large range through multi - frequency modulation and high precision phase difference measurement . however , laser range finders existing is not suitable for large range high speed tracing measurement for their complex multi - frequency modulation circuit and conflict between precision and speed in phase - shift measurement . in order to improve the large range measurement speed and accuracy , key technologies on multi - frequency modulation and high precision phase - shift measurement are deeply researched in this paper
相位法激光测距采用多频调制和高精度的相差测量技术可以在大范围内实现毫米甚至更高精度的测量,但现有的测量装置由于存在多频调制电路复杂和没有很好的解决相差测量的高精度和快速测量之间的矛盾问题,使得相位法激光测距很难应用于大范围目标快速的跟踪测量。 - The ic modulation circuits and microprocessor are used in the control unit . on the side of input of inverter , the maximum power point tracking of solar module is well realized by using a kind of thought of self - optimizing control ; on the side of output of the inverter , a kind of approximate optimum v / f control strategy is used in order to optimize the match between the output of the inverter and load of motor - pump
在逆变器输入侧，采用自寻优控制思想实现太阳能电池最大功率点跟踪( mppt ) ；在输出侧，采用了v / f近似优化的控制策略，以优化逆变器输出与机泵负载之间的匹配。 - It realizes the functions of storing and transferring the information of fire alarm , displaying time , scanning keyboards , the safe maintenance of system and so on . the part of wireless communication is controlled by at89c2051 mcu , mainly realizing transmitting and receiving data between controller and other detectors . the external signals received by a wireless module are transmitted to mcu through shaping circuit , and the signals of mcu are transmitted by a wireless module through tone modulation circuit
人机交互部分以单片机c8051f020为核心,为用户提供一个良好的操作环境,实现了火灾报警信息的存储及调用、时间的显示、键盘的扫描、系统的安全维护等功能;无线通信部分由单片机at89c2051来控制,主要实现控制器与其它探测装置之间信号的无线发射和接收,无线通讯模块接收到的外部信号经过整形电路送入单片机,单片机发出的信号经过音频调制再由无线通讯模块发送出去,这样实现了数据的无线传输;本文还从节能的角度出发,兼顾性能的可靠性,提出了一种合理的无线火灾报警的信息传输模式。 - Critical circuits in developing this board , such as tht modulation circuit , demodulation circuit , pll and filter , were analyzed in detail . parameters adopted in these circuits were also calculated . based on all that mentioned above , a rf board was implemented and related tests and experiments were successfully done as well
本文主要对cdpd移动终端调制解调器的硬件开发中的关键部分?高频部分电路进行了研究，论文在cdpdv1 . 1规范的基础上，提出了射频部分电路的实现方案，选择了合适的核心芯片，并对电路中的调制解调电路、锁相环、滤波器等关键模块进行了较为详细的分析，对电路中的有关参数进行了计算。