keying frequency
英 [ˈkiːɪŋ ˈfriːkwənsi]
美 [ˈkiːɪŋ ˈfriːkwənsi]
网络 电键频率; 键控频率; 按键频率
双语例句
- The Design of High Stability Keying Frequency Modulation Oscillator
高稳定度键控调频信号发生器设计 - The method of multilevel parallel phase modulation ( MPPM) was proposed, which means two parallel multilevel phase shift keying ( MPSK) signals were transmitted with one frequency at the same symbol period.
提出了高阶并行相位调制（MPPM）的方法，即在同一调制符号周期，使用同一频率并行发送2路携带不同信息的高阶相位调制信号。 - π/ 4-QPSK ( Quaternary Phase Shift Keying), an improved QPSK modulation, possess hig-her frequency efficiency and antinoise ability.
π/4-QPSK是四进制相移键控（QPSK）的改进方式，具有较高的频谱效率和较好的抗噪声性能。 - 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； - 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。 - All digital receiver of quadrature phase shift keying with large frequency shift correction
四相相移键控调制的抗大频偏的全数字接收机 - 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。 - Through the experiments with two systems, which based on two kinds of the binary system frequency shift keying ( 2FSK) modems, the algorithm's validity is tested.
以两种二进制频移键控（binarysystemfrequencyshiftkeying，2FSK）调制解调器搭建系统进行实验，验证了该方法的有效性。 - Focusing on combined N-ary orthogonal spread spectrum and M-ary differential phase shift keying ( NOrth-MDPSK), this paper investigates the bit error rate ( BER) with frequency offset in single path slow fading channel model.
针对N进制正交扩频和MDPSK复合调制（NOrth-MDPSK），分析了单径慢衰落信道模型中带有频差时的误比特率。 - 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。 - 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。