相位连续 meaning in English
phase-continuous fsk
Examples
- This thesis studied and introduced the method of msk modulation . it is a special type of constant envelope - continuous phase fsk
本文研究并介绍了msk调制方式，它是包络恒定相位连续的频移键控的一种特殊情况。 - Direct digital frequency synthesis ( dds ) is a new frequency synthesizing technique which is developed rapidly in recent years
直接数字频率合成( dds )是近年来得到迅速发展的一种新兴频率合成技术，它具有频率精度高、切换速度快、相位连续等优点。 - Because msk phase is continuous , the rolloff velocity of the msk spectrum to the psk was improved greatly . on the other hand , if the channel ' s bandwidth is presented , the data transmission rate of msk is better than that of bpsk . 2
由于msk相位连续，它相对于psk频谱的滚降速度有了很大的改善；另外在给定信道频带的时候，它比bpsk传输的数据速率高，每秒能传输更多的比特。 - At last we introduce the realization of all the parts , the problem in the circuit design and the measured data . the results show that the designed system has met the requirement . in this dissertation , direct digital synthesis technology has been used in the phase - locked frequency synthesizer , which can make full use of the characteristics of direct digital synthesis technology such as flexible output wave shape and continuous
本课题将直接数字式合成技术用于锁相频率合成器中,该方法将直接数字合成的特点,如输出波形灵活且相位连续、频率稳定度高、输出频率分辨率高、频率转换速度快、输出相位噪声低、集成度高、功耗低、体积小等与锁相环路的频带宽、工作频率高、频谱质量好等优点有机的结合起来,从而在宽带的条件下实现了比较好的杂散性能和相噪。 - The direct digital frequency synthesizer is a kind of fully digitized frequency synthesizer , which consists of the phase accumulator , the sine look - up table , the digital to analog converter and the low band filter . it is of high frequency resolution , fast frequency switching speed , low phase noise , the ability to switch frequencies while maintaining constant phase , and the ability to producing arbitrary waveforms
直接数字频率合成器是一种全数字化的频率合成器，由相位累加器、波形rom 、 d a转换器和低通滤波器构成， dds技术具有频率分辨率高、频率切换速度快、频率切换时相位连续、输出相位噪声低和可以产生任意波形等优点。