Nghĩa của từ nbfm (narrow-band frequency modulator) bằng Tiếng Việt
@Chuyên ngành kỹ thuật
@Lĩnh vực: toán & tin
-bộ điều tần dải hẹp
Đặt câu có từ "nbfm narrow-band frequency modulator"
1. The electrical control signal frequency is a narrow frequency band, and the coupling parameters are selected to match the modulator frequency band of operation.
2. Communications system including a narrow band modulator and associated methods
3. Ended up broadcasting in a narrow-band frequency.
4. System for detecting high-frequency, narrow-band signals
5. Narrow-band preamble for orthogonal frequency-division multiplexing system
6. The tuneable narrow band LNA may be operable over a wide frequency band.
7. Try setting the scanners to a narrow-band subspace frequency.
8. The invention provides a dual-band spread-spectrum modulator (101, 103, 105) which uses a single, relatively narrow, synthesizer to serve two operating frequency bands (102, 104).
9. Narrow-band tunable radio frequency (rf) power amplifiers and related methods
10. High-frequency coupler or power splitter, especially a narrow-band 3db coupler or power splitter
11. Extendable n-channel digital pulse-width/pulse-frequency modulator
12. High SNR samples are subsequently selected for estimating the frequency offset of the narrow band signal.
13. Variable frequency synthesizer comprising a sigma-delta modulator
14. The first frequency band is adjacent to a second frequency band and to a third frequency band.
15. The narrow-band feature signal can be further processed to determine the center frequency, bandwidth, and amplitude.
16. Computer, transmit a subspace signal using a narrow theta band frequency shifted into a background radiation domain.
17. The narrow band service handling module (120) performs narrow band service data process.
18. Narrow-band band-reject filter apparatus and method
19. The carrier pulses of the pulse frequency modulator were frequency modulated by the input analog signal.
20. The signal converter (121-122) is adapted to reduce its bandwidth automatically and incrementally from a requisite maximum frequency range to a narrow band frequency range.
21. Narrow-band optical absorption filter
22. The frequency was calibrated using an acousto-optic modulator to frequency shift part of the laser beam.
23. Narrow-band selection (13, 19) is not carried out in the baseband but on an intermediate frequency level above the baseband.
24. The invention utilizes small, narrow-band and frequency adaptable antennas to provide coverage to a wide range of wireless modes and frequency bands on a host wireless device.
25. Each of the narrow-band filters has a cut off frequency less than half the symbol rate of its modulation signal.