frequency modulation造句61. Frequency modulation and amplitude compensation of interruptedly received LFM signals are studied to precede a false target group based on interrupted T/R jamming system.
62. Abstract : The emissive frequency of the general frequency modulation broadcast transmitter is fixed.
63. A simple measuring method for effective value of pulse frequency modulation(PFM)is presented against on the needs of designation and analysis of high frequency X-ray generator.
64. Therefore , the tuner is essential to the frequency modulation radio.
65. Pumped-storage power plant can take on the tasks of reducing peak and filling valley, emergency reserve, frequency modulation, phase modulation, etc. in power system.
66. The application of the variode in frequency modulation circuit are discussed.
67. According to the characteristic of Through-the-Wall Surveillance (TWS), a novel TWS detector scheme is proposed which is based on sinusoidal frequency modulation and spread spectrum technologies.
68. Linear frequency modulation ( LFM ) interferences may be a kind of preferred wideband interferences in spread - spectrum.
69. Two kinds of typical wideband signal, Frequency Modulation (FM) signal and Frequency Spread signal, is analyzed qualitatively with Wideband Ambiguity Function.
70. Broadband noise frequency modulation signal with high precision is commonly used in modern electronic interference system.
71. The detection technique of phase generated carrier ( PGC ) demodulation method with laser frequency modulation is introduced.
72. Think what you can do when you overcome the frequency modulation or the insistence of your logical mind and when, with impeccability, you stand clean as a Keeper of Frequency.
73. As the control modes of DDS special chips are changeless, users are difficult to get frequency modulation wave what they need.
74. The detection problems of single-component linear frequency modulation (LFM) signal are studied.
75. A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal ( frequency-shift keying ).
76. Based on modulation domain analysis,[http://] a frequency modulation parameter testing method is proposed.
77. Therefore, the ration requirement has been made to the sideband spectrum of radiophone signal in frequency modulation in the present standard.
78. Most bats produce a complicated sequence of calls, combining constant frequencies and frequency modulation components.
79. Based on the introduction of components and principle of work of frequency modulation system of constant frequency AC power supply, math model of frequency modulation system is established.