The selection of modulation mode, the solution to the problem of blind zone, and the data processing m…
并详细论述了调制方式的选择,盲区问题及其数据处理方法。
Replaced the random signals with chaotic signals, all kinds chaotic switching modulation mode can be obtained.
将随机调制模式中的随机部分用混沌信号替代,得到了多种混沌开关调制模式。
The present invention provides a structure in which an amplitude-modulation mode and a frequency-modulation mode are switched.
本发明提供了一种结构,其中振幅调制模式和频率调制模式被切换。
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.
设计出了二次调制系统:采用连续可变斜率增量调制(CV SD)实现模拟话音信号与数字编码的转换,采用二进制相对相移键控(2DPSK)作为数字调制方式。
It also studies the algorithms of FSK, MSK, GMSK modulation and demodulation mode, and summarizes the general the software modulation and demodulation algorithm.
进行了FSK,MSK和GMSK调制解调的算法的研究,并在此基础上总结了部分数字信号调制的通用的算法。
The waveform generator is composed by DSP and quadrature digital upconverter (QDU). DSP is used as main controller to decide the modulation mode and output waveform of QDU.
波形产生器主要由dsp和数字上变频器构成,DS P作为主控制器设定数字上变频器的调制方式和输出波形。
Presents the technical requirements of ECG telemetering systems, including fidelity, range, radiated power, sensitivity, frequency, frequency stability, modulation mode and safety.
提出对心电遥测系统的技术要求,包括保真度、工作距离、辐射功率、灵敏度、频率、频率稳定度、调制方式和安全等。
According to torque ripple of brushless DC motor, the different PWM modulation mode and overlapping commutation method are used to minimize torque pulsation when current commutation is considered.
针对无刷直流电动机的转矩脉动,提出采用不同的PWM调制方式以及不同的重叠换相角减小换相电流所引起的转矩脉动。
It is flexible for the modulation and demodulation by software, and it may realize different modulation mode through the airborne downloading, therefore it suits the different communication systems.
用软件无线电技术实现的调制解调灵活性好,可以通过空中下载实现不同的调制方式,从而适应不同的通信体制。
Modulation control mode of compressor in power consumption for the amount of compression changed.
调制式控制模式中压缩机的动力消耗因压缩量的不同而变化。
Mode locking can be induced not only by loss modulation, but also by phase modulation.
锁模不仅可用损耗调制取得,也可用位相调制来得到。
This mode is very sensitive to the ionospheric Doppler modulation.
这种模式是非常敏感的电离层多普勒调制。
The function of the system is to acquire signal, communicate with PC, generate the frequency modulation signal, control detector's work mode.
系统具备对信号的采集、信号的实时处理、与PC机串口通信、产生变频调制信号及控制探测器主被动模式转换等功能。
A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation (STTC-MCPM) systems in Rayleigh fading channels.
针对瑞利衰落信道中突发模式的空时网格编码的多电平连续相位调制(STTC - MCPM)系统,提出了一种基于数据辅助的符号定时估计算法。
Mode of amplitude modulation of one channel by another.
模式的调幅一个由另一通道。
In the paper, the threshold, light output, mode, modulation, polarization, far field characteristics and thermal resistance effects are analyzed and generalized.
本文分析总结了垂直腔面发射激光器的阈值特性、光输出特性、模式特性、调制特性、偏振特性、远场特性以及热阻效应。
The results obtained in our work can be used in construction of a single longitudinal mode laser with enhance output and to suggest a new method of modulation for lasers.
它们可以用来得到较大输出能量的单纵模激光器和激光器的新的调制方法。
At last. it argues the best interference-free code and mode of modulation in interface circuit.
最后,讨论了接口电路中最佳抗干扰编码及调制方式。
According to the frequency modulation function mode, this paper proposes to design the nonlinear frequency modulation (NLFM) signal using the data fitting method.
根据调频函数模型,提出利用数据拟合的方法设计非线性调频信号。
Results show that the lower guide mode acting as the modulation channel is, the larger modulation index can be obtained.
结果表明,作为调制通道的导模阶数越低,调制效率越高。
The mode of expression, the tone and modulation of the voice, the choice of words, and certain other indefinable things distinguish him.
表达的方式、说话的语气、音调的转换、遣词造句以及某种难以言表的东西会让他们与众不同。
This mixed mode of operation, otherwise known as a dual transfer mode, switches modulation schemes during inter-slot periods.
混合操作模式(也称为双传输模式)在时隙间隔期间切换调制方式。
In contrast, 8-psk modulation implements a linear mode in which a time-varying amplitude is output from the pa as measured by power versus time during the useful part of the burst.
与此相反的是,8 - PS K调制方式实现线性模式,其中在脉冲串的有用部分期间,功率放大器发射的功率幅度随着时间而变化。
It operates both in current mode at high output load and in pulse frequency modulation (PFM) at light load to reduce the power dissipation.
它在重载下工作于电流控制模式,轻载下工作于脉冲频率调制(PF M)模式来降低功耗。
The power amplifier (12) has a fixed gain mode and a variable gain mode used for the two modulation formats, respectively.
功率放大器(12)具有分别用于这两 种调制格式的固定增益模式和可变增益模式。
Then the multi-pulse injection mode modulation technique is presented and a serial of modulated injection modes are designed.
进而提出了多脉冲喷油模式的调制技术,并设计了一系列调制喷油模式。
The master control chip uses AT89C51, the communication mode adopts DTMF signal with strong anti-interference and high reliability, and simplex frequency modulation.
主控芯片采用AT89C51单片机,通信方式采用抗干扰能力强、可靠性高的DTMF信号和单工调频的无线通信方式。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
前级采用电压单环调制方式,后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
前级采用电压单环调制方式,后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
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