frequency modulation造句
1. Frequency modulation does not allow static to creep in.
2. The figure below illustrates a simple frequency modulation architecture.
3. FM launcher can change navigating audio signal into frequency modulation signal, and playing.
4. The phenomenon that the effect of the high frequency modulation is better than that of the low frequency modulation is explained, and general rules of choosing modulator parameters are also presented.
5. The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
6. High frequency modulation and phasic demodulation technologies are also used to improve the resolution in dynamic measurement.
7. The realization and test of primary frequency modulation function for 330MW units are discussed.
8. Based on linear frequency modulation continuous wave (FMCW) technique, we have developed a distance measurement method for non contact and non integrating error measurement.
9. The simulation of generating Linear Frequency Modulation (LFM) pulse-compression target signals for radar with FPGA is presented.
10. The Configuration and activity theoretical of the placet frequency modulation glary instrument are introduced in this paper.
11. Frequency modulation(FM): the form of modulation in which the frequency of the carrier is varied in accordance with the instantaneous value of the modulating signal.
12. The practices of primary frequency modulation, OPC and FCB in Baosteel Power Plant were reviewed to explain the function of plant control in alleviating system failure.
13. LFMCW (Linear Frequency Modulation Continuous Wave) Radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
14. The signal formula of frequency modulation and harmonic detection was derived theoretically. The triple harmonic signal was simulated and the best modulating frequency was given.
15. Nonlinear frequency modulation (NLFM) whose modulation wave is the square of a saw wave is introduced into the fuze detection system.
16. LFM(Linear Frequency Modulation) pulse is a kind of important large time-bandwidth product signal and commonly used in modern radar system.
17. A new method using frequency modulation is presented to jam radar range imaging.
18. Chirp signal is a kind of pulse-compressed signal with large time-bandwidth products achieved through linear frequency modulation. It has high resolution in range because of its great bandwidth.
19. An introduction is given in the article to an automatic frequency modulation broadcasting system with digital audio recording function based on the computer software and hardware.
20. To deal with broadband signal processing, a new algorithm for the Direction Of Arrival (DOA) estimation of wideband Linear Frequency Modulation (LFM) signal was introduced.
21. The Radio Data System (RDS) enables users in the U. K. to pre-select the operation of a frequency modulation (FM) broadcast receiver.
22. The setting is introduced on the relationship between primary frequency modulation speed difference and primary frequency modulation load for current modulated type steam turbines with base-load.
23. This paper discusses the results of system simulation of linear frequency modulation pulse-compression radar and draws some conclusion on its capability of counter-jamming.
24. Cross-zero is a classical analytic method of modulate-domain which has good effect on the carrier frequency signal, linear frequency modulation signal and FSK signal.
25. A method is suggested in this paper to get clearer image for moving targets by using frequency modulation rate of them and to relocate the moving targets in radar image by moving the Doppler spectrum.
26. The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
27. Synthetic Aperture Radar (SAR) gains a high-resolution radar image by compressing the Doppler echo in azimuth direction and the linear frequency modulation (LFM) signal in range direction.
28. Compared with the performance of normalized single pulse signal and linear frequency modulation signal(LFM), a new method is presented.
29. The temporal coherence of diode laser was studied by using linear frequency modulation technique with simple, experimental apparatus.
30. In this paper the effect of the SAR system amplitude and phase errors, frequency modulation ratio error on target phase errors is analyzed and derived.
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