An experimental seven digit pulse code modulation (PCM) system has been built for the transmission of monochrome and color television signals over seven pairs of 22-gauge exchange area telephone cable ...

A CMOS impulse radio transceiver that uses chaotic pulse-position modulation for ultra-wideband (UWB) communications is designed. While the conventional direct-sequence spread-spectrum (DSSS) system ...

Carvalho, F. and Walter, F. (2013) Modulation for Digital Radio Broadcasting Using Amplitude Autocorrelation of Pseudo Random Noise Codes to Carry Information. Communications and Network, 5, 57-64.