automatic modulation 中文意思是什麼

automatic modulation 解釋
自調制
  • automatic : adj. 1. 自動的；機械的。2. 【生理】自動性的，無意識的。n. 1. 自動機械；自動裝置。2. 自動手槍。
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. The automatic identification system ( ais ) is a kind of new - type navaid and equipments. the article expatiated the basic principle of the modulation mode named gmsk

    船舶自動識別系統（ ais ）是一種新型的助航系統及設備，目前已發展成通用自動識別系統（ uais ） 。
  2. The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception, - electronic countermeasures, etc. the modulation recognizer based on the decision - theoretic approach and the constellation diagram is proposed and the signal ' s kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation

    通信信號調制類型的自動識別廣泛應用於信號確認、干擾辨識、無線電偵聽、電子對抗和信號監測等領域。本文提出基於決策論與星座圖的綜合調制識別器，使用信號的峰度區分調制類型是模擬調制還是數字調制。
  3. And with the pulse width modulation method, linearized the electrostatic force producer. it deeply analyzed the speciality of the electrostatic force closed - loop plan, and worked out the system parameters from automatic control theory and simulation

    深入分析了靜電式脈寬調制閉環方案的系統特性，結合自控原理理論和模擬分析對靜電式脈寬調制閉環系統參數進行設計計算。
  4. This dissertation, basing on simulation, makes a deep research on simulating signal of gmsk ( gaussian filtered minimun frequency shift keying ) baseband modulation and demodulation in ais ( automatic identification system ) equipment. the technology related in the following makes the modulation and demodulation of baseband signal into realization by ti dsp, at the same time, provides a key technique to develop ais system inland

    本文著重對自動識別系統（ ais - automaticidentificationsystem ）設備的高斯濾波最小頻移鍵控（ gmsk - gaussianfilteredminimunfrequencyshiftkeying ）基帶調制解調信號進行了模擬研究，並在模擬的基礎上，在ti的dsp上實現了基帶信號的調制解調，為國內研製ais系統儲備了關鍵技術。
  5. 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，針對1995年英國學者a . k . nandi和e . e . azzouz提出的針對2ask 、 4ask 、 2psk 、 4psk 、 2fsk和4fsk這六種常用的數字調制信號識別的演算法，提出了一種數字信號調制方式識別演算法（ dmra ）的改進演算法。該演算法僅利用四個特徵參數，就可以識別這六種調制方式，而且在調制識別率和信噪比性能上都有了很大的提高，能夠在信噪比不低於7db時，對實際信號的識別正確率高於92 % 。並且提出了最佳門限的設置方法，設置的門限適用於信噪比在5db ~ 30db范圍內變化的信號。
  6. The first one, named modular intelligence ecology environmental protection housing, belongs to one kind of new monomer housing. it has realized the housing completely modulation, the standardized factory assembly line processing production. it may realize the housing itself energy zero supply, the housing security, defending against riots, and preventing from fire by the entire automatic controller

    該生態住宅屬新型單體住宅，實現了住宅的全部模塊化標準化工廠流水線加工生產，可實現住宅本身的能源零供應家庭生活節水無回收價值垃圾的接近零排放等，同時可大幅度降低生產施工成本，提高土地的利用率，可作為別墅富裕農村民居中低層住宅樓度假村房屋工廠用房辦公樓酒店等多種用途。
  7. This paper gives us too ways ： one is to adopt a better modulation mechanism, s - cdma, to bate noise jamming. the other way is to implement automatic frequency agility under strong noise, based on the ranging and burst configuration mechanism of current docsis protocol, meanwhile, guaranteeing cmts ' s normal operating. this paper comprehensively analyzes the anti - jamming mechanism of docsis, then presents the specific implementation of the latter method

    如何降低噪聲對網路的危害，本論文指出了兩個方向，其中一個就是在調制體制上下工夫，採用s - cdma體制，通過改變調制方式來主動的抑制噪聲的影響；另一個方向就是基於現在協議提供的抗噪聲干擾的機制，充分挖掘測距機制和靈活的突發配置機制的抗干擾潛力，以不影響頭端設備的正常運行為前提，以它們為基礎實現能自動避開強噪聲干擾的頻率轉移。
  8. Automatic recognition of modulation signals is the key problem in non _ cooperative communication systems. it is the required function of software defined radio receiver

    信號調制樣式的自動識別是非協作通信中的主要問題，也是軟體無線電接收機必備的功能之一。
  9. This dissertation mainly introduces away of automatic recognition of modulation signals based on decision theory and brings forward three solutions. we adopt the first solution and discuss how to emulate the recognition algorithm on dsp2549 evm and the application of modulation recognition

    本論文主要介紹一種基於決策理論的信號調制樣式自動識別方法，提出了三種實現方案，採用了最佳方案第一種方案，深入探討了如何在dsp2549evm評估系統中實現模擬。
  10. And because of multi - modulation, the precondition of signal reception and demodulation is to decide the specific type of modulation. therefore, automatic recognition of modulation signal has become a requirement of software radio receivers

    由於多種調制方式的存在，對於一個傳輸信號進行接收解調的前提條件是要確定該信號的調制方式，因此信號調制方式的自動識別是軟體無線電接收機中必須具備的功能之一。
  11. Chapters studies the automatic signal detection and modulation classification. a statistical method to detect the signal is presented and a method using statistical parameter to classify signal is studied and improved

    第五章研究了信號的自動檢測與自動識別問題，提出了一種信號自動統計檢測方法，研究改進了基於參數統計自動識別數字調制信號的方法。
  12. The so - called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude, frequency, and phase, followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology. the result of amr can be used in the following processing blocks such as demodulation, supervision processing and anti - interference processing and so on

    所謂調制類型自動識別（ amr ）是根據接收信號樣本提取出振幅、頻率和相位的特徵參數，然後藉助信號處理技術和計算機快速處理能力，採用合理演算法進行處理，從而實現對未知已調波調制類型的自動識別，為后繼的解調、監控、抗干擾等處理奠定基礎。
  13. Automatic modulation limiting

    自動調制限制線路
  14. This project is on - line automatic recognition of the satellite signal modulation mode. it accomplishs a general signal analysis system based on the theory of softwareradio

    本項目對衛星信號的調制方式進行在線自動識別，依據軟體無線電的基本思想建立了一個通用信號分析平臺。
  15. The vxi - bus based test platform is the leading technology in the field of instrument testing, it can easily make up the automatic testing system. vxi - bus ' s modulation, flexibility, plug & play and high data throughput make it widely used in the industrial society

    Vxi總線測試平臺是儀器測量領域的前沿技術，可以靈活地組建自動測試系統，其模塊化、靈活性強、即插即用、數字吞吐能力強的特點使vxi總線測試平臺的應用越來越廣泛。
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