frequency shifting

• Frequency shift keying fsk
  移频键控,频移调制
• Binary frequency shift keying
  二进制频移键控
• Fsk frequency shift keying
  移频键控调制
• A frequency shift keyed modem for use on the public switched telephone network
  公共交换电话网上使用的频移键控调制解调器
• Frequency shift magnetometer
  频移磁强计
• Study on the technology of the continuous frequency shift using digital phase shifter
  利用数控移相器实现连续移频技术研究
• Study on characteristic of doppler frequency shifts in mobile satellite communications
  移动卫星通信信道多普勒频移特性研究
• Fsk frequency shift keying
  频移键控法
• Frequency shift telegraphy
  移频电报术
• Frequency shift keying fsk
  频移键控