A zero-IF receiver for an FM signal comprises quadrature-mixers (2,3) to which the input signal is applied and which mix the received carrier down to zero frequency. The signals appearing at the mixer outputs (11,12) are fed to a differentiate, multiply and subtract demodulator (22,23,...
2. 灯信号 电子电器英语词汇大全_英语学习_世贸人才网 ... modulated wave 灯波modulating signal灯信号modulation 灯 ... class.wtojob.com|基于31个网页 3. 调变信号 ...定不变。 图2-1 振幅调变系统方块图 设载波信号(Carrier Signal)为,其中而一般的调变信号(Modulating Signal)大多为谐振波… ...
and a second circle having a second diameter smaller than the first diameter on the complex plane, there are obtained, in accordance with an amplitude value of an amplitude component of each symbol of a received amplitude-modulated signal, a first threshold value and a second threshold value ...
modulating signal [′mäj·ə‚lād·iŋ ′sig·nəl] (communications) Signal which causes a variation of some characteristics of a carrier. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. ...
PURPOSE:To maintain a high recording efficiency, by adding a redundant bit of >=2 bits having different combinations to the input data of one block and then delivering the signal having the sum value of the digital sum closest to 0 among the modulated signals. CONSTITUTION:The input data havi...
system on the basis of a logic circuit that can be reconfigured without increasing the number of demodulators and modulators by modulating a transmission signal on the basis of a decided modulation format of an incoming signal modulated in compliance with any of a plurality of modulated formats. ...
A method for demodulating amplitude-modulated input signals with digital output of the amplitude information is specified in which, for the purpose of avoiding offset problems which occur in known AM demodulators, a synthetic signal is generated, the frequency of which is matched to the carrier fr...
short, into a 1/(2M) clock and to obtain the output with the most changing points from a 2M-phase phase detecting device by inserting the 1/(2M) clock while the information is short when the time division multiplexing signal is modulated and transmitted by a difference phase modulating ...
A circuit arrangement for demodulating a signal modulated by alternating the amplitude between a low and a high level (ASK) Voltage Circuitry for determining modulation levels of between a low and a high level (ASK) -modulated voltage, subsequent to a a high-frequency input (LB, LA) rec.....
To demodulate a frequency-modulated signal in digital representation, the successive digital values are supplied to a multiplier directly via one input and via a delay section via the other input. The product supplied by the multiplier contains a signal component with twice the frequency of the fre...