Essays about: "bpsk modulation"
Showing result 1 - 5 of 9 essays containing the words bpsk modulation.
-
1. Symmetric alpha-Stable Adapted Demodulation and Parameter Estimation
University essay from Luleå tekniska universitet/Signaler och systemAbstract : Transmission and reception of signals in wireless communication systems is affected by additive interference corrupting the signal. Traditionally, the interference is assumed to be AWGN and the system designs are usually based on that assumption. READ MORE
-
2. Characterization of NI-USRP System
University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskapAbstract : Nowadays the rapid developments of wireless communication technologies there are more and more ways to look into the RF measurements and designs in detail such as Universal Software Radio Peripheral(USRP) from LabVIEW, Advance Design System(ADS),etc.Moreover a lack of measurements what compared with different digital modulation schemes is becoming a problem. READ MORE
-
3. Frequency Noise in Widely Tunable Lasers for Coherent Communication
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : The objectives of this thesis are to measure the frequency noise of a widely tunable semiconductor laser, determine the main causes for the frequency uctuations and investigate the requirements for laser frequency noise for mQAM modulation formats by means of simulations. The following theoretical aspects are covered: the derivation of the frequency noise spectrum and the detuned loading effect from the rate equations; the shape and the causes of the frequency noise power spectral density; the derivation of the linewidth spectrum from white and 1/f frequency noise; the functionality of the laser and feedback loop used for the measurements. READ MORE
-
4. Error Rate Performance of Multi-Hop Communication Systems Over Nakagami-m Fading Channel
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : This work examines error rate performance of Multi-Hop communication systems, employing Single Input Single Output (SISO) transmissions over Nakagami-m fading channel. Mobile multi-hop relaying (MMR) system has been adopted in several Broadband Wireless Access Networks (BWAN) as a cost-effective means of extending the coverage and improving the capacity of these wireless networks. READ MORE
-
5. Automatic Modulation Recognition of Communication Signals.
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : The project is aimed at designing an intelligent communication system where the receiver is able to detect the modulation scheme of the signal it receives using Automatic Modulation Recognition (AMR) algorithms, without having minimum or no prior knowledge of the transmitted signal. Six digital modulation schemes namely QPSK, BPSK, 2ASK, 4ASK, 2FSK, 4FSK and 16QAM were used. READ MORE