modulation distortion of system 中文意思是什麼
modulation distortion of system
解釋
系統的調制失真- 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...
- distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
- of : OF ＝Old French 古法語。
- system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
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The frequency difference sensitivity of the modulation mode and the ability to overcome distortion by limiting amplitude of the signal and to overcome interference also affect the performance, too. in this paper, the relationship between the ability to overcome interference and the modulation mode is discussed at first. then the characters in some aspects specif ' ed above of some common modulation mode such as mfsk mpsk ofdm are studied. on this base, some according solutions to the problem of the different frequency - hopping system are put forward. in the past half of this paper, the realization scheme, pcrforemance and improving measures of ofdm are studied
本文首先較詳細地討論了跳頻抗干擾的能力與調制制度的關系，接著分別研究了幾種常用調制方式（ mfsk ， mpsk ， ofdm ）上述幾方面的性質，針對各跳頻系統存在的問題提出了相應解決方案，在本論文後半部分重點討論了ofdm跳頻系統的實現方案、性能及改進措施。 -
Results are given for a series of two - tones inter - modulation distortion measurements and the im3 is 48dbc. it is shown that a 24db improvement in the inter - modulation margin can be achieved when the amplifier ’ s output is 49dbm. and the efficiency of the whole system is 27. 8 %
經雙音測試證明，本系統在輸出總功率為49dbm時，三階互調產物抑制比為48dbc ，較未加入線性化系統前改善了24dbc ，此時系統總效率為27 . 8 % 。 -
The fundamentals of lfm ( linear frequency modulation ) signals, waveform parameter design, system control, quality analysis and pre - distortion calibration are discussed in this paper
本文討論了線性調頻信號的基本理論，研究了信號參數設計、系統控制、性能分析與預失真校正。
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