Mathematical model сoherent demodulation of synchronous mutually nonorthogonal digital signals with minimum frequency-shift keying
نویسندگان
چکیده
منابع مشابه
Zero-Crossing Based Demodulation of Minimum Shift Keying
Minimum shift keying (MSK) modulation has features such as constant envelope, compact spectrum and good error performance, which are all desirable in many digital applications including mobile radio. Numerous receiver structures to demodulate MSK have been suggested, such as correlation receivers, differential detectors and frequency discriminators. MSK is a form of biphase keying and can be de...
متن کاملAmplitude Shift Keying & Frequency Shift Keying
Aim: To generate and demodulate an amplitude shift keyed (ASK) signal and a binary FSK signal. Amplitude shift keying-ASK-in the context of digital communications is a modulation process, which imparts to a sinusoid two or more discrete amplitude levels. These are related to the number of levels adopted by the digital message. For a binary message sequence there are two levels, one of which is ...
متن کاملDigital Demodulation of Interferometric Signals
The marriage of optical sensing techniques with sophisticated digital signal processing has resulted in a myriad of practical metrology systems. Optical metrology systems offer many attractive measurement features. These systems are inherently non-contacting, nondestructive, and immune from electromagnetic interference. In addition, since light is used as the sensing probe, the measurement syst...
متن کاملOn Coded M-ary Frequency Shift Keying
We discuss the combination of permutation codes and M-ary frequency shift keying. We show that this combination has special properties that can be used in power-line communications: e.g. constant envelopes, and error correction capability for impulsiveand narrow band noise. We give a simple convolutional encoding and decoding scheme. The outputs of a binary convolutional codes are mapped onto c...
متن کاملEffect of Laser Frequency Offset on Optical Minimum-shift Keying Transmission System
As a special case of continuous phase frequency-shift-keying (FSK), minimum-shift keying (MSK) exhibits some different properties compared with the traditional optical phase modulation formats, such as return-to-zero (RZ) differential-phase-shift-keying (DPSK) and differential-quadrature-phase-shift-keying (DQPSK). In this paper, we investigated the receiver performance degradation caused by la...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia
سال: 2016
ISSN: 2310-0389,2310-0397
DOI: 10.20535/radap.2016.64.41-50