spread spectrum signal detection
SDR for opportunistic use of UMTS licensed bands
... reliable detection of spread spectrum signals has been carried ...the detection of spread spectrum signals using the classical radiometric approach is analysed and in [9] the ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... the signal from the jamming in spread spectrum systems is the excision of the portion of spectrum where the interference is located (see ...the signal is decomposed in sub-bands through ...
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Antenna arrays in multi user detection of spread spectrum signals
... demodulated signal with a local copy of its scrambling code, contributions to the detected signal from all other users may be quite high, causing significant decoding ...Multi-user detection is the ...
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Analysis of Simulation Parameters of Pulse Shaping FIR Filter for WCDMA
... Digital Signal processing techniques are being used to improve the performance of 3G ...Sequence Spread Spectrum (DSSS) signal through the processing gain and the coding gain can be used to ...
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Radar Communication Integration Based on MSK LFM Spread Spectrum Signal
... the signal can be extended and the sidelobe can be suppressed without affect- ing the function of the ...direct spread spectrum ...range detection and velocity detection is more ...the ...
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Optimal watermark embedding combining spread spectrum and quantization
... combining spread spectrum and quantization techniques with the embedding distortion ...watermarked signal was obtained in closed form, which was derived by solving the minimiza- tion problem with the ...
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Medium Access in Spread-Spectrum Ad Hoc Networks with Multiuser Detection
... multiuser detection techniques, have been studied in connection with simple medium access control protocols, for example, slotted ...different signal processing capabilities ...multiuser detection, ...
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Comprehensive Review on PN Sequence and their...
... also spread the spectrum of an information signal, but these techniques does not qualify as spread spectrum systems since they do not satisfy all the conditions as ...outlined. ...
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Filter Bank Based Narrowband Interference Detection and Suppression in Spread Spectrum Systems
... set to 0 and R represents the indices of the removed sub- bands. Thus, the algorithm checks if there are subchannels that could have passed the previous threshold but could still be a ff ected by jammer power and exceed a ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... Recently, palm vein recognition has been studied to overcome the problem in terms of convenience and performance of conventional systems in biometrics technologies such as fingerprint, palm print, face, and iris ...
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Detection of direct sequence spread spectrum signals
... (RF) spectrum, have been developed and are implemented in these devices to ensure co-existence and to limit ...lower detection probability in military ...communication signal within the resultant ...
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Efficient Transmission of Information using Transmission Code along FHSS
... a spread-spectrum system uses a process other than the information signal to expand, or spread, the bandwidth of the ...for spectrum spreading are direct sequence and frequency ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... The network, which has been already managed was operated to recognize vengeful and bundles. Still another tree structured IDS has been having high effectiveness in the detection of security intrusions in the ...
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Performance Evaluation of DSSS and FHSS Using Modulation Technique
... Spread spectrum techniques are very useful to overcome the communication problems like interference and ...information signal to be transmitted is first multiplied by the PN code called spreading ...
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COMPARING YIQ AND YCBCR COLOUR IMAGE TRANSFORMS FOR SEMI-FRAGILE MEDICAL IMAGE STEGANOGRAPHY
... Visible light photography is one of the important types of Diagnostic medical images apart from radiological, Printed Signal, Microscopy and 3D-Recostruction diagnostic images. They are often used for ex vivo ...
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SECURED COMMUNICATION USING SPREAD SPECTRUM TECHNIQUES
... the spread spectrumtechnique has the ability to discriminate interference signalsand detect the received signal by matching received PN codewith the local PN code and measuring the number of chips ofthe ...
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A Review Paper based on Spectrum Sensing Method for Cognitive Radio
... According to survey from Federal Communications Commission (FCC) in 2002, it has been found that spectrum access is more significant problem than physical scarcity of spectrum [5]. With number of ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... Finally, to improve the gene encode/decode latency, a Gene-based decoding using uniform crossover was performed through Hash Spatial Vector-based Template Authentic Key Generation algori[r] ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... the batch verification to save communication overhead and computational overhead. The leader collect authentication requests from MTC devices through this channel and compresses them into a signal request. The ...
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COMPARISON OF JAMMING EXCISION METHODS FOR DIRECT SEQUENCE/SPREAD SPECTRUM (DS/SS) MODULATED SIGNAL
... Secondly, among several combinations of missing value techniques with attribute subset selection methods, we found that the combination of replacement with mean as a missing value replac[r] ...
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