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DESIGN OF ADAPTIVE DIGITAL RECEIVER FOR INTERFERENCE REJECTION | ||
| AL-TAQANI | ||
| Article 1, Volume 23, Issue 4, 2010, Pages 130-141 | ||
| Author | ||
| Muhammed Salah Sadiq | ||
| Abstract | ||
| The procedure used in this paper was to reduce the impact narrow band interference (NBI) which cause the main distortion influence on the direct sequence binary phase shift keying spread spectrum system(DS-BPSK-SSS). A transform technique from time domain to frequency domain was used in this work .The mean used for reduction of distortion is put a design for a on/off switch ,called notch filter to eliminate noise and (NBI) .To determine the internal signals ,two types of windows were utilized ; rectangular and hamming window. Computer simulation models with Matlab system (7) for performance assessment in the presence or absence of notch filter. Results reflected that the system characteristics improved (SNR) as compared with (BER) when hamming windows has been used more than rectangular in all cases tested compared to other methods used to manipulate noise and interference. Index terms-Spread spectrum, interference excision, transform domain processing, windows filter | ||
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