信噪比性能的英文

• signal-to-noise performance

• 信    letter; mail
• 噪    chirp
• 比    2
• 性能    function; performance; prope ...
• 信噪比    c/n signal-to-noise ratio; desired-signal to undesired signal ratio; message-to-noise ratio; noise-signal ratio; psnr; ratio, signal to noise (snr); s/n rate; s/n signal-to-noise radio; s/n: signal-to-noise ratio; scr signal to clutter ratio; signal noise ratio; signal to jamming ratio; signal to mask ratio; signal to noise performance; signal to noise ration; signal-to-interference ratio; signal-to-noise performance; signal-to-noise ratio (snr); signal-to-noise ratio snr s/n; signal-to-noise ration ，snr; signal/noise ration; sn signa to noise atio; snr signal to noise ratio; snr(signal to noise ratio); snr: signal-to-noise ratio; snrsignaltonoiseratio; speech noise ratio; speech to noise ratio; speech-noise ratio
• 等效信噪比    equivalent signal to noise ratio
• 低信噪比    rsn
• 放音信噪比    signal-to-noise for playback
• 峰值信噪比    peak signal-to-noise ratio; pnsr; psnr peak signal to noise ratio; y-psnr
• 功率信噪比    power signal-to-noise ratio
• 光信噪比    optical signal to noise ratio; osnr optical signal noise ratio; snro signal to noise ratio for optics
• 极限信噪比    ultimate signal to noise ratio
• 加权信噪比    weighted signal to noise ratio
• 录还信噪比    signal-to-noise ratio for record-playback channel
• 目标信噪比    sirtarget; target-clutter ratio
• 输出信噪比    output signal-noise ratio
• 线路信噪比    signal noise ratio of line
• 信噪比改善    signal-noise enhancement; signal-to-noise improvements
• 言语信噪比    signal-to-noise ratio for speech
• 载波信噪比    carrier signal to noise ratio; carrier signal-to-noise ratio; carrier to noise ratio
• 最大信噪比    max snr; maximum signal to noise ratio; maximum signal-to-noise ration
• 最佳信噪比    optimum signalnoise ratio
• 阈值信噪比    threshold signal-to-noise ratio
• 比性能    specific performance
• 不加权信噪比 未加权信噪比    unweightedsignal-to-noiseratio

• Secondly , comparing with the algorithm that was given by english scholars a . k . nandi and e . e . azzouz in 1995 , this dissertation presents a modified automatic recognition algorithm of six kind of digital modulation types such as 2ask , 4ask , 2psk , 4psk , 2fsk and 4fsk , which only uses four key features , and has a very great exaltation in the rate of correct recognition and the performance of signal to noise , we puts forward the constitution of the best threshold which is applicable to the signal that changes within the scope of the signal to noise rate ( snr ) from 5db to 30db , and the overall success rate is not lower than 92 % when snr is over 7db
  其次,针对1995年英国学者a . k . nandi和e . e . azzouz提出的针对2ask 、 4ask 、 2psk 、 4psk 、 2fsk和4fsk这六种常用的数字调制信号识别的算法,提出了一种数字信号调制方式识别算法( dmra )的改进算法。该算法仅利用四个特征参数,就可以识别这六种调制方式,而且在调制识别率和信噪比性能上都有了很大的提高,能够在信噪比不低于7db时,对实际信号的识别正确率高于92 % 。并且提出了最佳门限的设置方法,设置的门限适用于信噪比在5db ~ 30db范围内变化的信号。