Conventional DPSK systems are adversely affected by transmitter/receiver frequency offsets due to frequency reference errors and Doppler shifts. Two DPSK modem concepts are presented which avoid the long frequency acquisition process of conventional DPSK. One technique involves a modified demodulator for conventional DPSK signals, while the other involves making minor changes to both the modulator and demodulator. Simulation results are provided showing performance relative to conventional DPSK
This work focuses on one of the prominent challenges in UNB communications which is Carrier Frequenc...
Bandwidth efficient digital modulation techniques, proposed for use on and/or applied to satellite c...
With frequency offset being taken into account, the performance of an existing coherent M-ary differ...
This paper describes a modem which has been developed and implemented using a digital signal process...
The need for a Programmable Rate Digital Satellite Modem capable of supporting both burst and contin...
The partical aspects of a 2400-bps differential detection minimum-shift-keying (DMSK) receiver are i...
This paper proposes three so-called pseudo-coherent demodulation schemes for use in land mobile sate...
While conventional analog modems employ some kind of clock wave regenerator circuit for synchronous ...
This paper describes the real-time digital implementation of an 8-differentiated phase-shift keying ...
The engineering development study to follow was written to address the need for a Programmable Rate ...
Communications between ground stations and nanosats in low earth orbit (LEO) require acquisition and...
The Inmarsat-M system for mobile satellite communication is specified as a frequency division multip...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
This work focuses on one of the prominent challenges in UNB communications which is Carrier Frequenc...
Bandwidth efficient digital modulation techniques, proposed for use on and/or applied to satellite c...
With frequency offset being taken into account, the performance of an existing coherent M-ary differ...
This paper describes a modem which has been developed and implemented using a digital signal process...
The need for a Programmable Rate Digital Satellite Modem capable of supporting both burst and contin...
The partical aspects of a 2400-bps differential detection minimum-shift-keying (DMSK) receiver are i...
This paper proposes three so-called pseudo-coherent demodulation schemes for use in land mobile sate...
While conventional analog modems employ some kind of clock wave regenerator circuit for synchronous ...
This paper describes the real-time digital implementation of an 8-differentiated phase-shift keying ...
The engineering development study to follow was written to address the need for a Programmable Rate ...
Communications between ground stations and nanosats in low earth orbit (LEO) require acquisition and...
The Inmarsat-M system for mobile satellite communication is specified as a frequency division multip...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
The thesis is concerned with the design of a phase-shift keying system for a digital modem, operatin...
This work focuses on one of the prominent challenges in UNB communications which is Carrier Frequenc...
Bandwidth efficient digital modulation techniques, proposed for use on and/or applied to satellite c...
With frequency offset being taken into account, the performance of an existing coherent M-ary differ...