Spread spectrum communication systems
Non-Linear Chirp Spread Spectrum Communication Systems of Binary Orthogonal Keying Mode
... (UWB) systems is realized using sine chirp in ...chirp spread spectrum communication systems using quadratic and exponential chirps are considered in ...
211
Narrow-Band Interference Suppression in CDMA Spread-Spectrum Communication Systems Using Pre-Processing Based Techniques in Transform-Domain
... The performance of a DS-CDMA communication system against narrow-band interference can be improved by using the interference suppression techniques [2–8]. Among the techniques which have been proposed in recent ...
10
Broadband Interference Excision in Spread Spectrum Communication Systems Based on Short-Time Fourier Transformation
... Abstract—An interference excision algorithm in direct-sequence spread spectrum (DS-SS) communication systems is introduced. The proposed excision algorithm is developed for linear frequency ...
12
The Effect of Channel Coding Rate on the Resistance of Direct-Sequence Spread-Spectrum Communication Systems to Narrow-Band Interference
... many communication systems, one may confront various intentional or unintentional narrow-band interference ...electromagnetic spectrum scarcity, one may have to design a cellular communication ...
15
Implementation of Direct Sequence Spread Spectrum Communication System Using FPGA
... The spread spectrum techniques for digital communication were originally developed for military applications because of their high security and their susceptibility to interference from other ...day ...
9
Effect of length on Correlation of PN sequence and Gold sequence
... : Spread spectrum modulation technique is different from the conventional communication ...of spread spectrum communication systems intern CDMA (code division multiple ...
5
FPGA Implimentation of DSSS Transmitter Using Pseudo Chaotic Sequence
... In spread spectrum communication systems, Pseudo noise sequence is used to spread the bandwidth of transmitting ...in spread spectrum ...non-linear systems which ...
5
Effect of Length on Correlation of PN Sequence and Gold Sequence
... ABSTRACT: Spread spectrum modulation technique is different from the conventional communication ...of spread spectrum communication systems intern CDMA (code division ...
5
DIFFERENT SPREADING SEQUENCES FOR PERFORMANCE COMPARISON OF DS-SS SYSTEM B Ch Kiran Patrudu*, D.Anil Prasad, B Ravi Kumar
... Spread spectrum techniques have been widely used in wired and wireless ...signal spectrum gives us many advantages such as robustness against interference and noise, low probability of intercept, ...
6
Detection of direct sequence spread spectrum signals
... wireless communication devices, techniques to efficiently use and manage system resources, such as the available radio frequency (RF) spectrum, have been developed and are implemented in these devices to ...
204
Frequency Hopping Spread Spectrum Security Improvement with Encrypted Spreading Codes in a Partial Band Noise Jamming Environment
... Hopping Spread Spectrum (FHSS) system is often deployed to protect wireless communication from jam- ming or to preclude undesired reception of the ...data communication systems based on ...
6
Design of a High Range, High Efficiency Spread Spectrum Transmitter for Audio Communication Applications
... widely spread technology with higher flexibility and lower cost compared to wired communications is an inseparable part of the modern life ...sequence spread spectrum (DSSS) systems gain ...
11
An Efficient Method of Spread Spectrum Logon for Satellite Terminal in DVB Systems
... satellite communication system proposed in this paper complies with the specifications of the DVB standards[1], [2], providing a standardised broadband interactivity ...networking communication based on the ...
7
Comparative Simulation & Analysis of 2- PSK Spreading Transceiver
... personal communication system (PCS), which usually co-exist in the ...digital communication has been that of providing for the efficient utilization of bandwidth and ...primary communication ...
5
Design of a direct sequence spread spectrum system for power line communication
... O'Neal, Jr., "Overview of Power Distribution Line Carrier Communications Systems," IEEE C;~obat. Telecommunications Conference, Nov[r] ...
98
New PN Even Balanced Sequences for Spread Spectrum Systems
... DSSS communication systems. In DSSS systems employing BPSK modulation, spreading is achieved by multiplying or modulating a low symbol (bit) rate binary information sequence with a pseudonoise (PN) ...
12
Chaos based Communication System Using Reed Solomon (RS) Coding for AWGN & Rayleigh Fading Channels
... telecommunication systems appears in a conventional digital spread spectrum, where the information is spread over a wider band by using a chaotic signal instead of the usual periodic sequence, ...
5
Radar Communication Integration Based on MSK LFM Spread Spectrum Signal
... equipment systems of military field demand more and ...various systems, it reduce the performance and efficiency of the entire platform, so the mobility was reduced, and the problem of conceal- ment was ...
10
Performance Improvement of Wireless Communications Using Frequency Hopping Spread Spectrum
... Compared to the other kinds of wireless communications, high frequency communication is selectively fading be- cause of the multi-path propagation and abundance of interference from the others. Interference always ...
6
CORRELATIVE ANALYSIS OF CYCLOSTATIONARY FEATURE DETECTION AND ENERGY DETECTION USING SIMULINK
... wireless communication systems to utilize the unused spread spectrum ...radio spectrum is left unutilized at any period of time, while at the same time some of the regions of ...
8