等效噪聲帶寬 的英文怎麼說
中文拼音 [děngxiàozàoshēngdàikuān]
等效噪聲帶寬
英文
effective noise bandwidth-
Neb noise equivalent bandwidth
噪聲等效帶寬Radio - frequency noise jamming is an effective jamming to pulse compressed ( pc ) radar. it shows the best jam quality when it ' s bandwidth equals to the jammed signal ' s bandwidth and it ' s central frequency equals to that of the jammed radar ' s receiver
射頻噪聲干擾對脈沖壓縮雷達是一種有效干擾,在其帶寬等於雷達信號帶寬,中心頻率對準雷達的中心頻率時具有最佳的干擾品質。Embedded technologies, multi - way technologies and sampling technologies are used to reduce the sampling rate by software, so that the system can provide appropriate image format according to the condition of network and can eliminate aliasing noise. the system also uses motion detection to control the frame rate. therefore, the system can save transmission bandwidth effectively and design to provide multiple degrees qos according to the network condition
本方案採用了嵌入式技術和多路技術,並從采樣技術入手,軟體調整采樣率,使得系統能夠根據網路狀態提供適當格式的圖像,消除欠采樣噪聲,而且通過運動檢測來控制幀率,從而可以有效地節省傳輸帶寬,達到根據網路情況自適應地提供多種qos服務等級的目的。With the characteristics of large ambient noise, very narrow bandwidth, low carrier frequency, great propagation latency and time - space - frequency variant multipath effect ( mpe ), the stochastic ocean channel has demonstrated the greatest complexity and difficulty for underwater acoustic wireless communications. among them multipath effect ( mpe ) is the most difficult obstacle that results in signal fading and inter - symbol interference ( isi )
但是噪聲高、帶寬窄、載波頻率低、傳輸時延大、多途徑效應隨時間?空間?頻率變化等通道特性都會給有效、可靠的水聲通信帶來很大的麻煩,其中多途徑效應是最主要的困擾因素,它會導致信號幅度衰落和碼間干擾。Nle noise equivalent bandwidth
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