激光技术
激光技術
격광기술
LASER TECHNOLOGY
2014年
2期
218-224
,共7页
激光技术%去噪%小波阈值算法%仿真
激光技術%去譟%小波閾值算法%倣真
격광기술%거조%소파역치산법%방진
laser technique%denoising%wavelet threshold algorithm%simulation
为了更好地实现激光侦听中的语音降噪，采用一种改进的小波阈值去噪算法，进行了理论分析和实验验证，取得了一系列仿真数据。结果表明，改进后的算法与传统的降噪算法相比，降噪后的语音信噪比显著提高，降噪效果明显，信号波形更加平滑、失真度小。
為瞭更好地實現激光偵聽中的語音降譟，採用一種改進的小波閾值去譟算法，進行瞭理論分析和實驗驗證，取得瞭一繫列倣真數據。結果錶明，改進後的算法與傳統的降譟算法相比，降譟後的語音信譟比顯著提高，降譟效果明顯，信號波形更加平滑、失真度小。
위료경호지실현격광정은중적어음강조，채용일충개진적소파역치거조산법，진행료이론분석화실험험증，취득료일계렬방진수거。결과표명，개진후적산법여전통적강조산법상비，강조후적어음신조비현저제고，강조효과명현，신호파형경가평활、실진도소。
In order to get better denoising result in laser interception , an improved wavelet threshold denoising algorithm was proposed .Through theoretical analysis and experimental verification , a series of simulation data were obtained.The results show that, compared with the traditional denoising algorithm , the speech signal-to-noise ratio after denoising is improved greatly .Denoising effect is obvious , signal waveform is smoother and distortion is less .
