gmsk 中文意思是什麼

gmsk 解釋
高斯最小移頻鍵控
  1. Furthermore, in order to supplement multi - object tt & c capability of new generation space tt & c system, gmsk modulation is recommended by ccsds because of its preferable frequency speciality and miscode performance. the thesis analyzed characteristic and demodulation realized of gmsk signal. attempting to design a universal multi - mode demodulator of bpsk, qpsk and gmsk, the thesis studied

    本文分析了gmsk信號的特點及解調實現，試圖設計一種bpsk 、 qpsk 、 gmsk通用的多模式解調器，因而研究了調制識別技術，分析了以決策論為基礎的三種信號的調制識別方法，並提出了基於人工神經網路的調制識別方法。
  2. 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 ） 。
  3. In that mainly including communication work mode, project argumentation of system, performance analyses and type choosing of communication transmitter - receiver and the design of antenna system, etc. in chapter 3, coding mode of msk and gmsk and the hardware circulation realization of modem are discussed in detail

    在第二章里，介紹無線電通信系統總體設計，按通信系統組成，逐項進行計算，主要包括通訊工作方式和體制的方案論證，通訊電臺性能分析、選型、參數，以及天線系統的論證等。在第三章里，詳細論述msk和gmsk編碼方式，以及用fx909實現數據機的硬體電路。
  4. The output of hdlc data package was coded by nrzi, then conducts the modulation of gmsk baseband signal through dsp. the message was correctly analyzed by sabb receiver, which proved the interconnection and intercommunication between apparatus

    產生的hdlc數據包通過nrzi編碼后，再通過dsp進行gmsk基帶信號的調制，此消息被sabb接收機正確解析，證明了設備的互連互通。
  5. The last gives the target of this paper. chapter 2 introduces the theory of frequency - hopping and gmsk, at the same time gives out a feasible method of fh synchronization and data transmission

    第二章研究了跳頻系統的基本原理和參數特徵，並根據對實際戰場中的干擾分析和數傳同步的特點給出了一種跳頻同步方法和數據傳輸機制。
  6. 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。
  7. In chapter 2 the principle of modulation techniques and channel equalization are introduced. simulation results are presented to illuminate the characters of gmsk modulation signal. then the channel equalization problem is advanced

    第二章介紹了通道編碼及通道均衡的基本原理，主要針對gmsk調制信號的特點和gmsk碼復信號調制進行了模擬，引出了通道均衡的問題。
  8. A linear approximation of the non - linear gmsk is proposed to help gmsk to be readily accommodated into a sdr

    對非線性的gmsk分析了線性近似方法，這對于在軟體無線電中實現gmsk有重要意義。
  9. Based on this gateway, a 16kbps fh - gmsk wireless data transmission have accomplished. the arrangement of the thesis is below : chapter 1 gives brief description of software radio in the origin and development status and for the future chapter 2 introduces the theory related to software radio chapter 3 introduces the characteristic about wireless channel and some estimation way of channel chapter 4 introduces scheme of wireless data transmission. a 16kbps fh - gmsk wireless data transmission have accomplished, the mainly modem algorithm is done by dsp chapter 5 summary

    本文的結構安排如下：第一章對軟體無線電的由來、定義、發展狀況以及結構做了簡要的概述第二章介紹了軟體無線電相關的一些理論第三章介紹了無線通道的特性，及常用通道估計的方法第四章介紹了無線數傳的實施方案，在硬體平臺上實現了16kkbps的gmsk跳頻數傳，主要的調制解調演算法在ti的dsp上得到實現第五章總結和展望
  10. Chapter 7 introduces and analyzes some timing error detection and feed - forward timing recovery algorithms for gmsk signal. the auto - correlation method is improved by using a post - filter. simulation results show that the improved method has better estimation accuracy

    首先分析比較了常見的gmsk符號同步的定時誤差檢測器演算法和前向定時參數估計演算法，並用后濾波的方法對定時參數估計的自相關法提出了改進，提高了演算法的估計精度。
  11. 2. clipping is used to reduce the papr ( peak - to - average power ratio ) of multicarreir gmsk signal. the conclusion is that the moderate clipping introduces small performance degradation

    採用削波方法來降低多載波gmsk信號的峰平比，結論是中等程度的削波只引起系統性能的略微下降。
  12. Guassian minimum shift keying gmsk

    高斯最小頻移鍵控
  13. The subject realizes frequency hopping technology and gmsk modulation, and realizes communication rate 192kbit / s

    本課題將跳頻技術和gmsk調制相結合來實現通信速率為192kbit / s 。
  14. 8psk is a new modulation scheme that is more bandwidth efficient than gmsk modulation scheme used in the gsm standard

    為獲得比現有蜂窩系統更高的比特率， edge採用了新的調制方式? 8psk 。
  15. Then two typical digital modulation schemes, pi / 4 - qpsk and gmsk, are examined respectively with their conventional implementations

    隨后討論了兩種典型的數字調制， pi 4 - qpsk與gmsk ，以及它們傳統的實現方法。
  16. In this thesis, the 0. 3 gmsk modulation and interrupts service routine are implemented with dsp assembly language

    本文就筆者完成gsm標準的0 . 3gmsk調制以及實現多dsp間通信時的中斷程序設計和調試工作進行了總結。
  17. The frequency offset estimation algorithms for gmsk signal are also discussed and a frequency offset estimator with larger estimation range and higher accuracy is proposed. two kinds of synchronization structures are compared with each other. at last, the synchronizer described above and a differentially coherent demodulator compose a blind gmsk receiver

    其次，基於對目前gmsk信號盲載頻偏差估計方法的分析和比較，根據第五章提出的頻差估計思想，提出一種寬估計范圍、高精度的gmsk信號頻差估計方法。
  18. Signal forming and different demodulation of gmsk baseband signal are mainly discussed in the dissertation. gauss filter, phase integral, sin table, matched filter, calculate angle, bit - synchronization 、 output filter 、 a / d 、 d / a and etc of gmsk baseband signal are carefully studied through software emulation in systemview environment. the modulation and demodulation of gmsk baseband signal are carried out by the way of using tms320vc549 of ti to integrate software and hardware

    本文重點討論了gmsk基帶信號的形成以及gmsk基帶信號的差分解調，系統在systemview的環境下進行了軟體模擬，通過對系統的模擬工作，仔細的研究了gmsk基帶信號的高斯預濾波器、相位積分、 sin查表、匹配濾波器、相角計算、位同步、幀同步、輸出濾波、 a / d和d / a等。
  19. Through the analysis of advantages of several gmsk arithmetic and requirement of system processing, the base - band time lag demodulating algorithm based on quadrature demodulation and tms320vc5402 are selected for base - band processing

    通過分析gmsk幾種演算法的優越性以及系統對處理的需求，選擇基於正交解調的基帶時延檢波演算法以及tms320vc5402進行基帶處理。
  20. Chapter 2 introduces the theory of frequency - hopping and omsk, at the same time gives out a fh - gmsk radio model in high frequency band under the matlab simulink environment. chapter 3 respectively proposes the parameter blind estimation algorithms for high - speed - hop and low - speed - hop fh signals based on smoothed pseudo wvd ( spwvd ). furthermore, the simulation results are given to demonstrate the algorithms performance

    第三章用「平滑偽wvd （ spwvd ） 」時頻分析技術分別研究了對高速跳和低速跳的跳頻信號的參數盲估計演算法，並對這兩種演算法，分別在matlab的環境下做了模擬和性能分析。
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