frequency modulation造句
31. American engineer and inventor whose improvements to radio communication included the development of frequency modulation ( 1933 ).
32. The basic principle of the linear frequency modulation absolute distance interferometric plan and the problems existed in beating frequency measurement are described.
33. Miniature passive hydrogen maser is developed at Shanghai Observatory cavity design and square wave frequency modulation.
34. In frequency modulation continuous wave ( FMCW ) radar, the target information is usually extracted by Range - Doppler processing.
35. The frequency modulation effects of positive (negative) dipole or unipole forcing source on LFO in the mid-high latitudes are difference.
36. Under the same amplitude modulation index and same frequency modulation index, different SVM waveforms can be derived from different sampling point distributions.
37. Optimization of such strategies as decoupling control and primary frequency modulation was adopted at the same time to make the unit meet the requirement of AGC operation even more.
38. Alarm function: can any one song or MP 3 FM frequency modulation for the alarm clock.
39. Gives an analysis on the non linearity in frequency modulation when a varactor modulates directly in a FM ranging fuze, and shows its influence on the precision of ranging.
40. In this dissertation the pulse compression performances of linear frequency modulation signals (LFM) and the algorithm of MTI/MTD are analyzed.
41. Taking the Narrow Band Frequency Modulation(NBFM)as an example, the process of communication question solution by EDA technology is given.
42. Radar waveforms that can using pulse compression technology are linear frequency modulation, nonlinear frequency modulation, phase coded pulse.
43. In this paper, we present a new frequency modulation function on the basis of features of traditional non-linear frequency modulation signal.
44. Aimed at wide-band linear frequency modulation(LFM) radar, a method of image deception signal generation was put forward.
45. Pumped-storage power plant can take on the tasks of reducing peak and filling valley, emergency reserve, frequency modulation, phase modulation, etc.
46. This paper describes the major performance and applications of the PFM (pulse frequency modulation) optical fiber transmission equipment for colour TV programs with two accompanying sound channels.
47. The frequency modulation response of wavelength conversion was discussed under the small-signal analysis.
48. A method of representing data in magnetizable surface storage; for example, " modified frequency modulation ".
49. Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS ) is proposed.
50. Digital frequency modulation called frequency shift keying (FSK), binary frequency shift keying recorded as 2FSK.
51. Based on the Fourier transform analysis of saw tooth signal frequency modulation, the concept of power spectrum spread attenuation factor in the case of barrage jamming is presented.
52. The technology of color separating intensity modulation realized three kinds of spatial frequency modulation in a frame of digital image by color channel separating in RGB color system.
53. Functions such as frequency modulation and circuit reset are achieved with different buttons and shown on the LED digital display tube.
54. A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.
55. Pumped-storage plant can take on the tasks of reducing peak and filling valley, emergency reserve, frequency modulation, phase modulation, etc.
56. According to the frequency modulation function mode, this paper proposes to design the nonlinear frequency modulation(NLFM) signal using the data fitting method.
57. The system of the device include Digital Audio Broadcasting Tuner, Radio Data System Encoder, Baseband Mixer, Subcarrier Modulator, Frequency Modulation Modulator and Microprocessor.
58. This thesis introduces a series of low cost high precision Linear Frequency Modulation Continuous Wave(LFMCW)ranging radar.
59. When the intensity modulation index increases, the optimal frequency modulation index increases.
60. The principle, design essential points, example and test result of the audio frequency modulation based on the loop filter of the PLL is introduced.
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