As the digital and the analogue system components are required on the same substrate in today’s mixed-signal chips, the DSSS transmitter system is proposed to be implemented in field-programmable gate array (FPGA)–based platforms and application-specific integrated circuits (ASICs). These are based on a concept that narrowband signal is scrambled before transmission in such a way that the signals occupy a much larger part of the radio frequency spectrum. Spread spectrum communication techniques make the signals more robust against interference and jamming. An interesting area of application in wireless data communication is direct-sequence spread spectrum (DSSS).
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