key modulation
英 [kiː ˌmɒdjʊˈleɪʃən]
美 [kiː ˌmɑdʒəˈleɪʃən]
键控，电键调制
双语例句
- At present, domestic spaceflight Unite S Band ( USB) TT& C network and transponder adopts Differential Phase Shift Key ( DPSK) modulation, which is implemented by hardware and cannot be used on pico-satellite.
目前国内航天飞行器USB测控网和测控应答机采用DPSK调制方式，采用硬件方式实现调制和解调功能，体积、重量和功耗较大，不能满足皮卫星应用环境。 - Based on the analysis of underwater acoustic channel, in the simulation of overall performance of the system using channel coding, the scheme of long range underwater acoustic communication system is designed at first, and some key techniques are analyzed such as modulation, channel equalization etc.
在应用信道编码的系统总体性能的仿真中，首先在水声信道分析的基础上，构建了远程水声通信的系统设计方案，并对调制解调、信道均衡等关键技术进行了说明。 - Considering the cost and complexity, an impulse radio system is proposed, together with binary phase shift key ( BPSK) modulation which can save transmit power and guarantee a moderate anti-nonlinearity.
考虑到系统的实现成本和复杂的，提出采用脉冲体制的系统方案，而调制方式采用可以节省发射功率及保证一定的抗非线性能力的BPSK调制。 - 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.
本文着重对多频调制及相差测量环节进行了深入研究以提高大量程测距的测量速度和精度。 - Key Technologies Research of Modulation and Demodulation System Based on Software Defined Radio
基于软件无线电的调制解调系统关键技术研究 - Simulation of Gauss Minimum Shift Key Modulation
高斯最小频移键控的实现方法研究和仿真 - FFT/ IFFT processor is the core data processing unit and is the key to realize data quadrature modulation and demodulation in OFDM system. The design of FFT/ IFFT processor directly determines the performance of the OFDM system.
FFT/IFFT处理器是OFDM系统中数据处理的核心单元，是OFDM系统中数据正交调制和解调的关键，FFT/IFFT处理器的设计直接决定着OFDM系统的性能。 - Lenst mean square ( LMS) class and constant modulus algorithm ( CMA) equalizer are studied based on on-off key ( OOK) modulation.
基于通断键控（OOK）调制信号进行研究，计算了信道响应系数向量，然后对算法仿真。 - In pulse modulation identification is one of radar reconnaissance key technology. Especially, in pulse modulation identification under low SNR is a hot point of recent researching.
脉内调制类型识别是雷达侦察的关键技术之一，特别是低信噪比下的脉内调制识别技术是当前研究的热点。 - At the same time, this chapter also researches on the theory analysis and implementation approaches of other key modules, such as modulation, demodulation, channel coding, timing and synchronization.
同时，本章还对其它几个关键模块，如调制解调，信道编码和同步定时等进行了理论分析和实现方法的研究。