multiple tone 中文意思是什麼
multiple tone
解釋
多頻聲-
This article takes hanging off and wide fluctuation of transmition velocity of adsl as example, then analysis centers on the discerte multiple tone and the principle of channel load assignation. from analysis above article points out the root of adsl being sensible of noise signal. at last, reserches effects that window function and barrier effect on frequency and adopts fft to work out the noise power of adsl
本文以電信現在推出的adsl傳輸中鏈路經常掉線和傳輸速率經常大范圍波動為例，重點分析了adsl所使用的dmt調制方式和注水演算法分配通道載荷方式原理，由此指出adsl對噪聲信號敏感的根源，在得到問題的根源之後，分析了窗函數和柵欄效應對頻譜的影響，採用fft方法計算adsl線路的噪聲功率譜，為adsl線路測試提供了可靠的理論依據。 -
In awgn channel, we introduce a novel iterative multiple - tone interference suppression scheme in the multiple - tone interference environment
針對加性白高斯噪聲通道中的發射信號，提出了迭代多音干擾抑制方法。 -
In this thesis, the effect of different frequency interval and power allocated of multiple - tone interference on the performance of the proposed scheme is analyzed by simulation results
模擬結果表明，多音干擾的頻率間隔越大時，該演算法的干擾抑制性能越好。 -
Firstly, the strongest interference is estimated and cancelled. then interference estimation and cancellation is implemented again in the next iteration. through the iterative processing, multiple - tone interference is removed
該方法採用排序干擾檢測的方式重建干擾，然後進行干擾對消，接著將對消后的信號再排序干擾檢測、再對消，通過這樣的迭代過程抑制多音干擾。 -
Over multiple - path fading channel, a novel iterative single - tone interference suppression scheme is proposed for convolutionally coded system in the single - tone interference environment. the iterative receiver is based on the combination of iterative single carrier frequency domain equalization and interference rebuilding and cancellation
該方法利用衰落通道下單音信號的頻域特性，對干擾信號進行重建及干擾抵消，同時，結合單載波頻域均衡迭代檢測技術，實現衰落通道中的聯合單音干擾抑制及信號檢測。 -
There are several widely used methods to acquire the frequency response graph, including single tone method, multiple tone method, noise impulse method and maximum length sequence signal impulse method
分析音頻設備的頻率響應特性主要有單音信號檢測法、噪聲沖擊檢測法和最大長度序列檢測法等。
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