Robert K. Marston

TL;DR: In this paper, a radio signal is applied to an in-phase detector channel and a quadrature phase detector channel, each detector channel includes, in cascade arrangement, an in phase downconverter means for downconverting the received radio signal to a baseband signal; a sampling means for sampling the base band signal at a predetermined rate; and a matched filter means matched to the symbol waveform and wherein the sample pulses are stored over a predetermined period of time that corresponds to two data symbols.

TL;DR: In this paper, a single sideband signal can be demodulated by using sampled data techniques, where a Hilbert's transform is performed upon the intermediate frequency (IF) radio signal, which results in the output of two sample and hold devices being in phase quadrature.

TL;DR: In this paper, a modulating system using a surface acoustic wave device for receiving impulses and providing, as an output, shaped carrier signals for transmitting data is proposed, using impulses of positive and negative polarities to provide minimum shift keyed modulated output signals wherein the carrier frequency is an odd one-quarter multiple of the repetition rate of the impulses.

TL;DR: In this article, the authors used digital values of MSK-like waveshapes which can be stored in a storage media such as a ROM and then output in a prescribed fashion such as in phase quadrature through the use of an addressing technique to the ROM.