常見例句

• The cyclostationary near field acoustic holography (CYNAH) technique is proposed for cyclostationary sound fields in previous papers.
  摘要與普通近場聲全息理論相比，循環(huán)平穩(wěn)近場聲全息理論可以更好地用于分析循環(huán)平穩(wěn)聲場。
• In the end, we discuss the direction finding algorithms of UCA for the coherent signal sources and the wide-band cyclostationary signal sources, respectively.
  最后,分別對相干信源和寬帶循環(huán)平穩(wěn)信源的UCA測向算法進行了研究。
• Firstly, using the characteristic of cyclostationary signal, an ARIMA (autoregressive integrated moving average) model can be modeled and the forecast can be done.
  首先，利用周期平穩(wěn)信號的特點，采用季節(jié)性模型，對周期平穩(wěn)信號進行建模，并作預(yù)測預(yù)報；
• When early faults accur, the background noise is heavy, it is difficult to extract the latent periodic components successfully using second order cyclostationary analysis alone.
  摘要由于噪聲的嚴重干擾，在滾動軸承早期故障時，僅僅利用二階循環(huán)平穩(wěn)分析方法往往較難成功提取出信號中潛在的有用周期信息。
• This method analyzes the cyclostationary of pretreated signals.In order to realize quadrature demodulation, the 4th-order cyclic cumulant is used to estimate carrier frequency and phase deviation.
  通過對預(yù)處理后的MPSK信號進行循環(huán)平穩(wěn)分析，利用已調(diào)信號的4階循環(huán)累積量估計載波頻率和初始相位偏差以便實現(xiàn)正交解調(diào)。
• A spectrum hole detection scheme using the feature of cyclostationary of the comminicating signal is proposed, and its feasibility and reliability is tested with PSK signal as an example.
  本文提出了利用通信信號的循環(huán)平穩(wěn)特征進行頻譜空穴檢測的方案，并以PSK信號為例驗證了該方法的有效性和可靠性。
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