modulating waveform 中文意思是什麼
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Because frequency - shift signal is a kind of modulation signal, it ' s waveform is two ac sine signal of alternating i. e. upper frequency and lower frequency which was generated by low frequency modulating middle frequency
由於移頻信號是一種調頻信號，其波形為低頻信號調制中心載頻信號后產生的低端載頻（下邊頻）和高端載頻（上邊頻）兩個交替變化的正弦交流信號。 -
In communications, an amplitude modulated signal in which the amplitude of the carrier is reduced to zero for some part of the cycle of the modulating waveform
通信技術中的一種調幅信號，其載波的振幅在調制波形周期的某些部分減少到零。 -
Associated with the military project " high speed arbitrary waveform generator ( awg ) module ", this thesis focuses on the designing methodology of analog channel of the awg developed by uestc. signal filtering, amplitude and offset controlling, square wave and modulating wave ' s generating are studied in detail and corresponding circuit implementation are developed
本文結合電子科技大學承擔的軍用型號項目「 vxi任意波形發生器es14v21 」 ，展開對任意波形發生器模擬通道設計技術的研究，詳細討論了信號的濾波、放大、衰減、加偏處理以及方波和調幅波的產生方式，並設計了具體電路。 -
It is the first time that driving chip used by pdp is applied to the fed panel. by adopting the new ic and the novel driving method, the developed grey scale modulator achieve high flexbility, stability and high integration. the circuit system includes cyclonetm fpga from altera and stv7610 from st microelectronic. with the capability of generating two kinds of modulating waveform, it has the advantages of flexible configuration, high display - quality, high integration and low cost. fpga design is based on the quartus platform. data transforming and the system controlling are achieved by using single fpga
基於altera公司cyclone系列fpga和st公司stv7610驅動晶元設計的fed顯示器的灰度調制電路系統可以支持兩種調制波形，具有配置靈活，顯示性能好等優點，其集成度為原有系統的三倍，且造價更低廉;基於quartusii軟體平臺進行了fpga的系統開發與優化，採用單片fpga完成了全部的數據轉換和系統控制功能， fpga的可編程特性使系統的設計具有充分的靈活性和可擴展性。
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