keying signal
英 [ˈkiːɪŋ ˈsɪɡnəl]
美 [ˈkiːɪŋ ˈsɪɡnəl]
网络 按键讯号; 启闭信号; 键控信号; 开关信号
双语例句
- A scheme of satellite covert communication based on the coherent chaos shift keying signal is proposed in this paper, then the whole system model is also constructed.
为了降低突发噪声对混沌通信系统的影响，提出一种降低混沌接收系统混沌同步时间的方法。 - Analysis on transmission characteristics of differential phase shift keying signal of continuous pressure wave in drilling fluid channel
钻井液连续压力波差分相移键控信号的传输特性分析 - Wavelet transform ( WT) provides a constant-Q filter analysis that is suitable for transient detection and characterization of M-ary phase shift keying ( MPSK) signal.
小波变换提供品质因数Q恒定的滤波器分析，能够精细刻化M电平相移键控（MPSK）信号在码元转换时刻的相位跳变。 - In this paper a new nine phase shift keying signal used in ternary system is introduced and a method to realize the ternary digital to analog phase modulation is proposed. It is very important for application of this method in a ternary CDMA mobile communication system.
介绍一种新的应用于三值系统的九相相移键控信号，并讨论了实现三值数字相位调制的一种方法，为用于三值CDMA通信新体制打下了必要的基础。 - Based on the discussion of the topological structure of a superheterodyne FM receiver, a one chip FM receiver for FSK ( Frequency Shift Keying) signal has been designed.
在分析超外差FM中频接收拓扑结构的基础上，设计出一种用于FSK（移频键控）信号的单片FM中频接收电路系统。 - Discusses the modern test method for the transmission signal in the signal transmission system with phase-consecutive frequency shift keying ( FSK) encoded mode, and describes the relative signal characteristic extraction method with mathematics and presents the characteristic function for the communication signal characteristic extraction method.
对使用了相位连续的频移键控编码方式（FSK）的信号传输系统中的几种传输信号现代检测方法进行了探讨，并对其所对应的信号特征的提取方法进行了数学描述； - This paper firstly theoretically analyses the principle and disadvantages of chroma-key signal That is produced from colour difference signal, and then suggests that keying signal is produced from RGB signal.
本文从理论上分析了目前较常见的用色差信号来产生硬色键信号的原理及其存在的缺点，进而提出直接用三基色信号产生键信号的设想。 - In Chapter 4, we study the use of wavelet transform to estimate the symbol rate of an M-ary phase shift keying ( MPSK) signal.
第四章讨论了基于小波变化的MPSK信号符号率估计算法。 - In the FM-QCSK ( Frequency Modulated Quadrature Chaos Shift Keying) communication system, frequency modulation of the continuous-time chaotic signal makes it possible to generate an inherent wideband signal with constant energy per bit.
在调频-四相混沌键控（FM-QCSK）混沌数字通信系统中，对时域连续混沌信号进行频率调制，使单位码元具有近似相等的比特能量； - A new signal labeling designed criterion is proposed for bit interleaved coded modulation with iteratively decoding ( BICM-ID) when using pseudo interleaver. A new eight-phase shift keying ( 8PSK) signal labeling is designed based on it.
基于伪随机交织器，提出了一种比特交织编码调制-迭代检测（BICM-ID）下星座映射的新规则，并设计了新的8相移相键控（8PSK）星座映射。 - Based on the analysis of generation and demodulation of binary frequency shift keying in digital communication, this paper introduces that using one set of frequency discrimination circuit to demodulate binary frequency shift keying signal in special working environments.
在分析数字通信中二进制移频键控信号的产生及解调基础上，提出一种应用于特殊工作环境中的单频点鉴频解调二进制移频键控信号的方法。 - In this paper, a new Asymmetric-Raised-Cosine Frequency Shift Keying ( ARC-FSK) modulation signal used for the middle range multi-carrier UWA communication is proposed.
该文针对中程（10~30km）多载波水声通信系统提出一种非对称升余弦频移键控调制（ARC-FSK）信号。 - In modern Sonar equipment the several signal operation modes are usually required, for instance, the keying single frequency signal operation mode, the keying frequency modulation signal operation mode and etc.
在现代声纳中常要求在一部声纳中同时具有几种信号工作方式的功能，例如单频脉冲信号工作方式、键控式调频信号工作方式等等。 - In this paper, a new nine_phase shift keying signal used in ternary CDMA mobile communication system is introduced, and the DSP implementation of how to modulating and demodulating nine_phase shift keying signal in software radio is discussed emphatically.
文章介绍了一种应用于三值CDMA移动通信系统的九相相移键控信号，并重点讨论了如何用DSP技术实现三值九相相移信号的调制与解调。 - Frequency-shift keying signal modulation using FPGA
利用FPGA实现移频键控信号的调制 - The solution for linking twice sampling cycles, enhancing resolution of measurement of rotating speed, isolating and processing keying phase signal, are investigated.
探讨了两次采样循环之间的衔接、提高转速测量分辨率、键相位信号的隔离和预处理等问题的解决方案。 - Decreasing Out of Band Power of Minimum Shift Keying ( MSK) Signal Based upon Input Data Symbol Pulse Weighting
用输入数据符号加权减小MSK信号的带外功率 - Non-coherent energy detection was the key technique of frequency-shift keying modulation, so the system introduced Chirp signal as the carrier signal for its performance with sharp energy peak, easy to detect and judge to reduce the probability of error.
非相干能量检测是频移键控技术的关键，系统采用线性调频信号作为载波信号，其匹配信号具有尖锐的能量峰值，易于检测、判决，以降低误判的概率。 - Phase Shift Keying ( Phase-Shift-Keying PSK) signal is a kind of common digital communication modulation signal.
相移键控（Phase-Shift-KeyingPSK）信号是一类常见的数字通信调制信号。 - In the third chapter, the detailed basic principles of minimum shift keying modulation is introduced, and the MSK signal generation method and simulation results are given in the fourth chapter.
在第三章中，详细介绍了有关最小频移键控调制方式的基本原理，并在第四章中给出了MSK信号生成方法及仿真实验结果。 - At the part of de-noising for frequency-shift keying signal, this paper taking the methods of wavelets denoising and wavelet packet de-noising.
在对移频轨道信号的降噪部分，本文分别使用了小波降噪和小波包降噪两种不同的方法，并给出仿真结果。 - At present, many researches about all-optical wavelength converters only based on the signal modulation formats of binary amplitude shift keying ( OOK) and differential phase shift keying ( DPSK), but it is very few to the signal modulation format of polarization shift keying ( PolSK).
目前，全光波长转换器的研究主要集中在二进制振幅键控（OOK）和差分移相键控（DPSK）信号调制格式，对于偏振移位键控（PolSK）信号调制格式全光波长转换的研究很少。 - On the FSK ( Frequency Shift Keying) digital receiver, the signal is demodulated mainly by frequency discrimination.
在FSK（频移键控）数字接收机中，信号的解调主要以鉴频为主。