邻近信道的英文

• adjacent cha el
• adjacent channel

• "邻近"英文翻译    near; close to; adjacent to
• "信道"英文翻译    channel; route; chain
• "最邻近信道干扰" 英文翻译 :    daci direct adjacent channel interference
• "近信道" 英文翻译 :    adjacent channel
• "邻近信令点" 英文翻译 :    adjacent signaling points
• "邻近信息块" 英文翻译 :    nif neighborhood information frame
• "非邻近信令点" 英文翻译 :    non-adjacent signaling points
• "近信" 英文翻译 :    chikanobu
• "邻近" 英文翻译 :    nearclose toadjacent to
• "接近信号灯" 英文翻译 :    approach light
• "进近信标" 英文翻译 :    approach beacon
• "最近信息" 英文翻译 :    up-to-date information
• "信道" 英文翻译 :    [通信工程] (information) channel; route; chain
• "接近信标探测" 英文翻译 :    proximity beacon detection
• "接近信件质量" 英文翻译 :    near-letter quality
• "大约、邻近" 英文翻译 :    in the neighborhood of
• "附近, 邻近" 英文翻译 :    neighborhood
• "附近,邻近" 英文翻译 :    vicinity
• "隔壁；邻近" 英文翻译 :    next door to
• "邻近的" 英文翻译 :    abutting; adjacent; contiguous; immediate; neighboring; neighborly; neighbouring; proximal; proximate; vicinal
• "邻近点" 英文翻译 :    neighbor point
• "邻近端" 英文翻译 :    approach end
• "邻近色" 英文翻译 :    adjacent colour
• "邻近位" 英文翻译 :    juxtaposition
• "邻近星" 英文翻译 :    near stars

• The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band . firstly , this paper clarifies the theory of i / q modulation , elaborates evm and acpl , and analyzes the effect of amplitude and phase unbalance and dc offset on evm . secondly we review the basic principle of phase locked loop and it ’ s composing parts , including the basic conception and design method of pll frequency synthesizer , especially introduce the charge pump pll frequency synthesizer in detail
  首先,在阐述i / q正交调制基本原理的基础上,通过对误差矢量和邻近信道功率泄漏的详细分析,定性、定量地讨论了各种非理想电路因素(如相位不平衡、幅度不平衡、直流偏差等)对调制器性能的影响;其次,介绍了锁相环的工作原理和基本组成部分,包括锁相环的设计和环路滤波器的设计,特别详述了电荷泵锁相频率源;第三,介绍了采用直接调制技术模拟卫星信号的射频前端的设计;最后,对整个直接射频调制系统进行测试,结果基本上达到了课题要求。