Coherent and Noncoherent Detection CPFSK
نویسندگان
چکیده
منابع مشابه
Noncoherent Detection and Differential Detection
From the communication channel and implementation aspects of communications, the transmission environement may be sufficiently degraded, e.g. a multipath fading channel, that acquiring and tracking a coherent demodulation reference signal is practically difficult. Coherent receivers require exact knowledge of the channel phase for optimum performance. Due to the difficult task of estimation cha...
متن کاملComparison between Coherent and Noncoherent Receivers for UWB Communications
Wepresent a comparison between coherent and noncoherent UWB receivers, under a realistic propagation environment, that takes into account also the effect of path-dependent pulse distortion. As far as coherent receivers are concerned, both maximal ratio combining (MRC) and equal gain combining (EGC) techniques are analyzed, considering a limited number of estimated paths. Furthermore, two classi...
متن کاملClosed-form analysis of multibranch switched diversity with noncoherent and differentially coherent detection
Exact closed-form analytical expressions are derived for the average bit error probability of multibranch switched diversity systems over independent and identically Nakagami-m distributed fading channels. Practical schemes that use noncoherent or differentially coherent symbol detection are considered. The general bit error probability expression derived in this paper includes as particular ca...
متن کاملSpecular coherent and noncoherent optimal detection for unresolved multipath Ricean fading channels
This paper considers specular coherent and noncoherent optimal detection for unresolved multipath Ricean fading channels with known delays. The focus is on receiver structures and performance. Specular coherent detection employs the carrier phase of the Ricean specular component, while noncoherent detection does not. Therefore, a specular coherent detector must be augmented with a carrier phase...
متن کاملNoncoherent sequence detection
In this paper, new noncoherent sequence detection algorithms for combined demodulation and decoding of coded linear modulations transmitted over additive white Gaussian noise channels, possibly affected by intersymbol interference, are presented. Optimal sequence detection in the presence of a random rotation of the signal phase, assumed to be constant during the entire transmission, requires a...
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: IEEE Transactions on Communications
سال: 1974
ISSN: 0096-2244
DOI: 10.1109/tcom.1974.1092333