SIGNAL MODULATION AND DEMODULATION METHODS, MODULATION AND DEMODULATION APPARATUSES, AND SIGNAL TRANSMISSION SYSTEMThe present invention discloses a signal modulation method, including: demultiplexing an input signal into 2N sub-signals; grouping every two of the 2N sub-signals into a pair; performing ...
Gergely, in Analog Electronics: Circuits, Systems and Signal Processing, 2002 9.1.1 Modulation and demodulation All radio systems use some form of modulation. In the process of modulation, the audio, video or digital signal to be transmitted is impressed upon, or modulates, a higher-frequency ...
实际通信中,不少信道都不能直接传送基带信号,必须用基带信号对载波波形的某些参量进行控制,使载波的这些参量随着基带信号的变化而变化,即调制 The modulation and the demodulation are in the communications system the most essential function module.In the actual correspondence, many channels all cannot transmit ...
Systems and methods are described for multidimensional signal modulation and/or demodulation for data communications. A method includes modulating a carrier signal in a first domain selected from the group consisting of phase, frequency, amplitude, polarization and spread; modulating the carrier signal in...
Digital Signal Processing 101 || Complex Modulation and Demodulation By designing an appropriate state observer, we have constructed two subsystems which alternately synchronize the chaotic drive system. When the parameter o... Parker,Michael 被引量: 0发表: 2017年 Multi-longitudinal mode fiber laser...
摘要: PURPOSE: To attain stable modulation and demodulation even in the case of high bit rate transmission in the digital signal transmission adopting a orthogonal frequency multiplex system.收藏 引用 批量引用 报错 分享 文库来源 求助全文 DIGITAL SIGNAL PROCESSING UNIT, DIGITAL SIGNAL MOD 优质文献 ...
One kind can improve demodulation characteristics of a frequency modulation signal demodulation circuit of the quadrature detector circuit output signal of the frequency modulation phase component (I) and quadrature component (Q) respectively delayed by a sampling time. 正交分量(Q)乘以延时的同相分量(IS...
MODULATION AND DEMODULATION SYSTEM FOR CHROMINANCE SIGNAL PURPOSE:To prevent the beat disturbance between the fundamental wave and the 3rd harmonic by applying FM modulation to a signal once at a high frequency at modulation and applying frequency conversion to a signal into a carrier frequency... ...
APPARATUS AND METHOD FOR SIGNAL MODULATION AND DEMODULATION IN FILTER BANK MULTI-CARRIER SYSTEM (DFT)-spread filter-bank multi-carrier (FBMC)/offset quadrature amplitude modulation (OQAM) scheme and are capable of achieving a single carrier effect ... K Choi,NA Dongjun 被引量: 0发表: 2018年 ...
5、eration of Complex Signals Modulation and Demodulation Multiplexing and Demultiplexing Quadrature Amplitude Modulation Signal Generation 63.Examples of Typical SignalsECG signal.EEG signal.Seismic signals.Speech signals.Musical sound signal.Time series.Images.74. Typical Signal Processing Applicatio ...