1) MFSK
多进制频移键控
1.
Long-range Underwater Acoustic Information Transmission Through MFSK Modulation;
基于多进制频移键控调制的水声远程信息传输技术研究
2.
Underwater Long-distance Remote Control Communication Method Based on MFSK;
基于多进制频移键控的水下远程遥控通信方法
3.
Improved Modulation Classification Method for MFSK Signals;
一种多进制频移键控信号调制分类的改进算法
2) MFSK signal
多进制频移键控信号
1.
On mudulation classification and demodulation of MFSK signals;
一种多进制频移键控信号的调制分类及解调方法
3) 2FSK
二进制频移键控
1.
To acquire the information of railway binary frequency-shift keying(2FSK)signal s upper and down side frequencies and base low-frequency with high accuracy in real time,a novel frequency detection algorithm compatible with China-made system and France UM71 system was proposed.
为实时高精度获取铁道二进制频移键控信号的上、下边频和基带低频信息,提出一种可兼容国产制式和法国UM71制式的频率检测新方法。
2.
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM,FM,SSB,2ASK,2FSK,2PSK,2QPSK.
本通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
4) binary frequency shift keying
二进制移频键控
1.
Demodulation of binary frequency shift keying in digital communication;
二进制移频键控在数字通信中的解调
5) MPSK
多进制相移键控
1.
A novel design and implementation approach to the modulation system of MPSK has been proposed in this paper.
提出了一种实现MPSK(多进制相移键控)调制系统的新方法。
2.
The test data of MPSK modulator is given.
最后给出了多进制相移键控(MPSK)调制器测试数据,其性能优良,可以满足多频段扩跳频数据传输要求。
3.
This paper introduces introduces DDS principle, utilizes EDA means, regards FPGA as the hardware carrier to realize MPSK , thus solved the fuzzy problem of phase place of MPSK,and have improved the precision of phase place modulatedmodulated.
本文介绍DDS原理,利用先进的EDA手段,以FPGA作为硬件载体实现多进制相移键控,从而解决了传统实现MPSK调制的相位模糊问题,提高了调制的相位精度。
6) multi-frequency shift keying(MFSK)
多频移键控
补充资料:多普勒频移
多普勒频移
物理学术语。又称“多普勒频率”。由多普勒效应引起发射频率与运动目标反射波或散射波信号频率之间的频差。反射体引起的多普勒频移(fd)与发射频率(fs)的关系式为fd=(2Vcosθ)·fs,C为声速,V为反射体的运动速度,θ为反射体运动方向与声束指向之间的夹角。取超声诊断中的典型数据可算得血流。胎心检测中的多普勒频移(fd)均在声频范围之内,因此这类诊断仪器均可采用扬声器来监听。
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