keying method
英 [ˈkiːɪŋ ˈmeθəd]
美 [ˈkiːɪŋ ˈmeθəd]
【电】按键法
双语例句
- This paper describes the Keying After Effects in the general process and introduced a method commonly used by several Keying apply each method and the environment.
抠像大多运用于电影和电视的特效制作上，因此，掌握好这项技术是一个高端的影视制作人的必备条件之一。 - A long-range underwater acoustic information transmission technique based on Multiple Frequency Shift Keying ( MFSK) modulation is studied, and the demodulation method based on spectrum estimation is introduced.
研究了一种基于多进制频移键控（MFSK）调制的水声远程信息传输技术，介绍了通过谱分析进行解调的方法。 - 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。 - 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； - Intersymbol-Interference and Jitter Free Offset-keyed Quadrature Phase Shift Keying ( IJF-OQPSK) is a new modulation method in modern digital modulation techniques.
无符号间干扰和抖动－交错正交相移键控（IFJ－OQPSK）是现代数字调制技术中的一种新的调制方式。 - Chaos Shift Keying ( CSK) is generally divided into two categories by demodulation method as coherent detection CSK and non-coherent ones.
混沌键控（CSK）按解调方式通常分为相干解调的CSK与非相干解调的CSK。 - The paper studies the symbol rate estimation of Multi-Phase Shift Keying ( MPSK) signals and a method of blind symbol rate estimation of MPSK signals based on multi-scale Haar wavelet is presented.
论文研究了相位编码信号（MPSK）的码速率估计，提出基于Haar小波的多尺度MPSK码速率盲估计方法。 - On-off keying ( OOK) is the main modulation method used in the present optical communication engineering, simple and easy to implement. But its bit error rate is so high that error correcting coding techniques are necessary.
目前无线光通信工程主要采用开关键控调制，该调制简单、易实现，但误码率高，需要引入纠错编码技术。 - OQPSK ( Offset Quadrature Phase Shift Keying) modulation technology is a constant envelope modulation technology, which possesses the features of high spectrum and power utilization ratio. The modern method has been widely employed in satellite communication system and mobile communication system.
偏移正交相移键控（OQPSK：OffsetQuadraturePhaseShiftKeying）是一种恒包络调制技术，具有较高的频谱利用率和功率利用率，广泛应用于卫星通信系统和地面移动通信系统。 - 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。 - Except electronic reconnaissance receiver, MFSK ( M-ary Frequency Shift Keying) receiver, OFDM ( Orthogonal Frequency Division Multiplexing) receiver, spectrum analysis method of receiver scheme is rarely used in conventional receiver.
采用谱分析方法实现接收的方案，除在电子侦察接收机、MFSK（多进制频移键控）接收机或OFDM（正交频分复用）接收机中应用外，很少在常规数字接收机中使用。