时频调制的英文

• time frequency modulation
• time-frequency modulation

• "时"英文翻译    shí]
• "频"英文翻译    frequent
• "调制"英文翻译    mingle; toss; lard; modulate ...
• "临时频率调制" 英文翻译 :    incidental frequency modulation
• "摆频调制" 英文翻译 :    wobble modulation
• "低频调制" 英文翻译 :    low frequency modulation; low-frequency modulation
• "低载频调制" 英文翻译 :    low carrier modulation
• "调频调制" 英文翻译 :    frequency modulation
• "调频调制,调频" 英文翻译 :    frequency modulation
• "调频调制盘" 英文翻译 :    fm reticle; frequency modulation reticle
• "分频调制" 英文翻译 :    frequencydivision modulation
• "高频调制" 英文翻译 :    high-frequency modulation
• "高频调制器" 英文翻译 :    high-frequency modulator
• "光频调制" 英文翻译 :    ofm optical frequency modulation
• "交频调制" 英文翻译 :    psm pitch shift modulation
• "扩频调制" 英文翻译 :    spread spectrum modulation ssm
• "脉频调制" 英文翻译 :    pfm pulse frequency modulation
• "射频调制器" 英文翻译 :    radio frequency modulator; radio-frequency modulator; rf modulator
• "声频调制" 英文翻译 :    audio modulation; buzzer modulation
• "视频调制" 英文翻译 :    video modulation
• "视频调制器" 英文翻译 :    video modulator
• "双音频调制" 英文翻译 :    two-tone modulation
• "像频调制" 英文翻译 :    image modulation
• "移频调制" 英文翻译 :    frequency shift modulation; shift frequency modulation; shift-frequency modulation
• "移频调制器" 英文翻译 :    frequency-shift modulator

• The anti - jamming performance of the modem is greatly improved by time - frequency modulation according to the applying case
  根据该调制解调器的应用场合，它采用时频调制的方法使其抗干扰能力大大提高。
• This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver , studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels . the theory and key technical of adaptive modem is discussed . in the last , an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission , this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer
  本文在对短波数传两种常见调制方式fsk及psk最佳解调性能分析的基础上，讨论了几种采用典型调制技术的短波数传系统(如时频调制、多进制频移键控慢跳频、 chess系统)原理、优缺点以及抗衰落和抗符号间干扰的性能；分析了自适应串行数传系统抗短波信道衰落和多径干扰的原理、关键技术；在本文的最后引入一种有望解决短波数传系统低效率状况的调制方式bcm -分组编码调制，给出了一个采用bcm技术与自适应均衡技术相结合的短波数传系统方案，并通过计算机模拟进行了初部验证。
• By experimentation , it is shown that time - frequency modulation is efficient and effective , which has rake and fault tolerant capacities in passband . the modem has strong ability of anti - jamming and error - correction which can finish the mission of communication under poor channel qualitative properties
  经过实验证明，时频调制是一种简捷有效方法，它具有很好的带内分集接收效果和容错能力，该调制解调器在信道质量很差的条件下，仍能完成数据通信的任务，具有很强的抗干扰和纠错能力。