2) constant envelope modulation
恒包络调制
1.
By theory and practice simulation, several types of constant envelope modulation techniques are analyzed and compared, including their modulation principle, the modulated wave envelope, power spectrums density, error bit rate and the influence of the band-limited.
结合理论和实验仿真结果,分析讨论了深空通信中的各种恒包络调制技术,对它们的调制原理,已调波包络,功率谱密度,误码率性能,以及带限非线性信道对其功率谱的影响等方面都作了研究和比较。
2.
We use constant envelope modulation techniques because of the channel characteristics of deep-space communications.
根据深空通信的要求,选择恒包络调制方式作为深空通信的调制方式。
3) constant envelope
恒定包络
1.
Theoretical analysis proves that CPQPSK signal has constant envelope.
理论分析证明CPQPSK信号具有恒定包络。
2.
Compared with other modulation techniques, the Constant Envelope and Quasi-constant Envelope Modulation&Demodulation technologies are insensitive to the non-linear characteristic of the power amplifier because of the constant envelope.
恒定及准恒定包络调制技术与其它调制技术相比,由于包络恒定,对功放的非线性特性不敏感。
4) Quasi-constant Envelope
准恒定包络
1.
Compared with other modulation techniques, the Constant Envelope and Quasi-constant Envelope Modulation&Demodulation technologies are insensitive to the non-linear characteristic of the power amplifier because of the constant envelope.
恒定及准恒定包络调制技术与其它调制技术相比,由于包络恒定,对功放的非线性特性不敏感。
6) modulation envelope
调制包络线
补充资料：恒定
永恒固定。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条