frequency shift transmission
英 [ˈfriːkwənsi ʃɪft trænzˈmɪʃn]
美 [ˈfriːkwənsi ʃɪft trænzˈmɪʃn]
网络 移频传输; 频移传输
双语例句
- The utility model discloses a minimum frequency shift keying ( MSK) modulator, and is applied to a digital information transmission system.
最小移频键控（MSK）调制器，适用于数字信息传输系统中。 - Employing the modulation scheme Non-coherent Frequency Shift Keying ( NFSK), the existence of the optimal transmission strategy is proved, and a repeated dynamic game is proposed.
针对非相干频移键控调制方式，证明最优传输策略的存在性，提出一个重复的动态博弈。 - The results indicate that, under the thermal noise approximation, the measurement accuracy of Brillouin frequency shift is dependent on thermal noise, the derivative of the transmission function of the edge optical filter and the power of Brillouin scattering optical signal.
结果表明，在热噪声近似下，布里渊频移测量精度与热噪声、边缘光滤波器透射函数的导数及布里渊散射光信号功率有关。 - In the design, the PFM ( pulse frequency modulation) technology is used for video transmission, and the FSK ( frequency shift key) technology is used for data transmission.
视频信号传输采用脉冲频率调制（PFM）技术，而数据信号传输利用频移键控（FSK）技术。 - Studies on Multiple Frequency Shift Keying in Underwater Data Transmission
水声数据传输的多频移频键控研究 - Up to now, there is a lack of appropriate algorithm for Doppler frequency shift compensation in the situation of low base-band transmission rate, large dynamic range of Doppler frequency shift and implement in the universal hardware platform.
传统的去除多普勒频移的算法并不适用于基带码速率较低、多普勒频偏动态范围较大的情况或者难于在通用硬件平台上实现。 - However, the received performance of HF/ VHF communications is directly affected by Doppler frequency shift, which caused by transmission characteristics including terminal movement, fading, multi-path effects and other factors, thereby needs to be estimated accurately and compensated real-timely.
但是系统中终端的移动、衰落和多径效应引起的多普勒效应会严重的影响到接收性能。因此，准确实时的多普勒频移估计与补偿技术对于短波/超短波通信来说尤为重要。