spread-spectrum-based technique
Analysis, optimization, and implementation of a hybrid DS/FFH spread spectrum technique for smart grid communications
... We decided to use the Software Defined Radio (SDR) method for hardware implementation of the hybrid DS/ FFH system because of its flexibility in changing the sys- tem to evaluate new concepts. This methodology has also ...
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Spread Spectrum Based Digital Audio Watermarking
... decided based on the capacity results obtained for the ...traditional Spread spectrum watermarking scheme comes with interference from the host audio which can lead to a very high loss in the ...
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Variable Frequency Modulation for EMI Suppressing in Power Converter
... interleaving technique is used to equally share the total power to be delivered the general idea in variable-frequency spread spectrum sig- naling is shown in Figure ...the spectrum dis- ...
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Secure Spread Spectrum Watermarking for Telemedicine Applications
... wavelet based watermarking schemes were proposed for medical images ...Watermarking technique can be further classified into two categories, reversible and irreversible ...using ...
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ROBUST SPREAD SPECTRUM BASED PATCHWORK AUDIO WATERMARKING
... (HVS). Spread Spectrum watermarking embeds the watermark in frequency domain, thereby providing a much more robust and invisible watermarking scheme as compared to time domain watermarking, which is ...
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Time-slot Assignment based mostly Channel Access theme for Reliable Transmission
... this technique you can easily transmit information between two terminals ...This technique is used for data encryption of text data, images and multimedia ...data. Spread spectrum is one of ...
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Performance Improvement of Wireless Communications Using Frequency Hopping Spread Spectrum
... powerful technique to deal with interference and Gilbert-Elliot channel model is a good technique to analyze the situations of channels by categorizing the channel conditions based on their ...
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Modeling and Simulation of CDMA Codes in Scilab
... scheme based on pseu- do-random codes, a spread spectrum system with a wide frequency band, and it occurs security of the air inter- ...the technique that is adopted by CDMA mobile ...
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Design and Simulation of Digital Carrier Tracking Technique for High Dynamic Spread Spectrum Receiver
... moment, they present cycle slips introducing a phase ambiguity. We will show how to use the same frequency information as that of an FLL to build a nonambiguous phase detector, the Unambiguous Frequency-Aided (UFA) phase ...
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Peak Detection based Spread Spectrum Audi Watermarking using Discrete Wavelet Transform
... this technique the watermark bits are embedded using discrete wavelet packet ...selective spread spectrum audio watermarking technique using communication channel model and attack ...
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Hierarchical Spread Spectrum Fingerprinting Scheme Based on the CDMA Technique
... all spread spectrum sequences are calculated at the ...of spread spectrum sequences is also increased, hence the computational cost is linearly ...is based on the observation that the ...
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Efficient blind decoders for additive spread spectrum embedding based data hiding
... decoder based on the Weibull distribution is ...improved spread spectrum (ISS) embedding, an improved technique of the traditional additive SS, and propose the modified ISS scheme for ...
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On the Implementation of Spread Spectrum Fingerprinting in Asymmetric Cryptographic Protocol
... the spread spectrum watermarking technique in the fingerprinting protocol based on the homomorphic encryption ...Cox’s spread spectrum watermarking method into asymmetric ...
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BER Calculation for CDMA System Using PN & Gold Sequence
... distribution spectrum there are so many kinds of channels, here in the analysis of system I have used AWGN channel which introduce noise on the basis of channel ...
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Filter Bank Based Narrowband Interference Detection and Suppression in Spread Spectrum Systems
... signal spectrum. Based on the stopband attenuation of the filters in the filter bank, we can then estimate how many subbands will be affected by the jammer, that is, get enough jammer energy to modify the ...
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Novel Attacks on Spread-Spectrum Fingerprinting
... Spread-spectrum watermarking is generally considered to be robust against collusion attacks, and thereby suitable for digital fingerprinting. We have previously introduced the minority extreme attack (IWDW ...
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A joint adaptive MMSE downlink receiver
... Channelisation codes 1 to 3 are applied to spread the spectrum of tbe data The spread spectrum signal is organised in data bursts of type 1 and transmitted through a baseband equivalent [r] ...
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Spread Spectrum Sensing Techniques for Transformer Frequency Response Data
... E. Frequency Response Analysis (FRA) of a Transformer In our contribution, we have applied spread spectrum sensing techniques on FRA data of a transformer. Dick and Erven introduced the term „FRA‟ to ...
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Research of Spread Spectrum Steganography based on High order Markov Model
... HOMM BASED ON CI In the description of the dynamic random phenomenon, the Markov model is a very good application tool, and it achieves a considerable achievement in the field of practical application [9] ...
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Radar Communication Integration Based on MSK LFM Spread Spectrum Signal
... is based on LFM, through the MSK modulation to achieve the integration ...the spread spectrum technology with the MSK-LFM waveform based on the previous ...of spread-spectrum ...
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