Title :
Signal space implementation of sampled-data receivers
Author :
Turcotte, Randy L.
Author_Institution :
Motorola Inc., Scottsdale, AZ, USA
Abstract :
Several of the basic algorithms to be used by general-purpose digital signal processors (DSPs) in recovering digitally modulated signals are discussed. DSP-based algorithms for data detection, carrier tracking, and symbol synchronization are presented from the vector space point of view. This allows for the development of general algorithms that are applicable to a wide range of modulation formats without the need for specialized processors. The result is a set of initial design rules, which can be used in the DSP implementation of multimode multirate modems. Only quadrature amplitude modulation (QAM)-type signaling formats are considered
Keywords :
amplitude modulation; modems; receivers; sampled data systems; signal processing; DSP algorithms; QAM; algorithms; carrier tracking; data detection; design rules; digitally modulated signals; general-purpose digital signal processors; modulation formats; multimode multirate modems; quadrature amplitude modulation; sampled-data receivers; signal space; signaling formats; symbol synchronization; vector space; Algorithm design and analysis; Baseband; Digital signal processing; Finite impulse response filter; Frequency synchronization; Modems; Modulation; Signal processing; Signal processing algorithms; Signal sampling;
Conference_Titel :
Military Communications Conference, 1991. MILCOM '91, Conference Record, Military Communications in a Changing World., IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-87942-691-8
DOI :
10.1109/MILCOM.1991.258216
