frequency shift data
英 [ˈfriːkwənsi ʃɪft ˈdeɪtə]
美 [ˈfriːkwənsi ʃɪft ˈdeɪtə]
网络 频移数据
双语例句
- Owing to adopting the technique of binary frequency shift keying ( 2FSK), this equipment has less error-code rate. It can be used either to security systems, or to other median distance data communications.
由于采用了二进制移频键控技术（2FSK），整机具有低的误码率，该法除可用于安全系统外，还可用于其他中程数据通信。 - Phase FM-DCSK ( Frequency Modulation-Differential Chaos Shift Keying) for increasing the data rate of the chaos modulation system is proposed.
为进一步提高混沌通信系统的传输速率，提出了一种基于FM（frequencymodulation）的四相混沌键控方法。 - 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 - With the analysis of traditional data transmitting method in power line carrier channel, this paper introduces a new transmission device which adopts octal quadrature amplitude modulation instead of frequency shift keying to achieve the requirement of multi-purpose 1 200 bps data transmitting.
通过对传统载波数据传输方式的分析，介绍一种新型电力线载波数据传输装置，采用八进制正交振幅调制替代频移键控调制，实现上音频复用传输1200bps数据。 - The traditional uncertainty estimate method is usually based on the valid almanac reckon, however, it can only provide rough range for the uncertainty of pseudo-code phase and carrier frequency shift due to the valid age of almanac data.
受历书数据有效龄期影响，建立在历书数据推算基础上的传统方法只能粗略给出伪码相位和载波频偏不确定范围。 - Orthogonal Frequency Division Multiplexing ( OFDM) is a technique which has the highest spectrum efficiency currently, suitable for the multi-path transmission and Doppler frequency shift of the wireless mobile channel to transfer high-speed data.
正交频分复用（OFDM，OrthogonalFrequencydivisionMultiplexing）是目前频谱利用率最高的一种技术，适合在多径传播和多普勒频移的无线移动信道中传输高速数据。 - Meanwhile, the influence of bit reversal and Doppler frequency shift on the acquisition process is expatiated and the maximum data length for precision code acquisition is evaluated.
与此同时，阐述了比特翻转以及多普勒频移对捕获过程产生的影响，并推导了可用于P码捕获的最大数据长度。 - Because of space environment different from that of the land, it requires to consider such factors as long transmission, weak signal, channel noise, Doppler frequency shift and frequent interruption of space-land communication during the design of data network and communication protocol.
正由于空间网络环境与地面的不同，在网络和通信协议设计中就必须考虑到信道噪声更强、传输时延较长、信号电平趋弱、空-地通信会频繁中断、多普勒频移较大等问题。