The pioneer anomaly

SG Turyshev, VT Toth - Living Reviews in Relativity, 2010 - Springer
Radio-metric Doppler tracking data received from the Pioneer 10 and 11 spacecraft from
heliocentric distances of 20–70 AU has consistently indicated the presence of a small …

Constellation design for future communication systems: A comprehensive survey

J Barrueco, J Montalban, E Iradier, P Angueira - IEEE Access, 2021 - ieeexplore.ieee.org
The choice of modulation schemes is a fundamental building block of wireless
communication systems. As a key component of physical layer design, they critically impact …

Reduced-complexity approach to iterative detection of coded SOQPSK

E Perrins, M Rice - IEEE Transactions on Communications, 2007 - ieeexplore.ieee.org
We develop a reduced-complexity approach for the detection of coded shaped-offset
quadrature phase-shift keying (SOQPSK), a highly bandwidth-efficient and popular constant …

[PDF][PDF] Digital modulation schemes employed in wireless communication: A literature review

M Barnela, DS Kumar - International Journal of Wired and Wireless …, 2014 - academia.edu
Wireless communications has become an emerging and fastly growing field in our modern
life and creates enormous impact on nearly every feature of our daily life. A tremendous …

Gender identification from speech signal by examining the speech production characteristics

E Ramdinmawii, VK Mittal - 2016 International conference on …, 2016 - ieeexplore.ieee.org
The term gender identification deals with finding out the gender of a person from his or her
voice. Gender identification has been implemented in several Automatic Speaker …

Robust low-frequency spread-spectrum navigation system

SF Smith, JA Moore - US Patent 7,876,267, 2011 - Google Patents
3,372,395 A 3, 1968 Kline 5,212,715 A 5, 1993 Pickert et al. 5,402,348 A 3, 1995 De La
Salle et al. 5,668,775 A 9, 1997 Hatteland 5,796,366 A 8, 1998 Grebnev et al. 6,308,077 B1 …

Triply redundant integrated navigation and asset visibility system

SF Smith, JA Moore - US Patent 8,068,984, 2011 - Google Patents
US PATENT DOCUMENTS 3,372,395 A 3, 1968 Kline 5,212,715 A 5, 1993 Pickert et al.
5,402,348 A 3, 1995 De La Salle et al. 5,668,775 A 9, 1997 Hatteland 5,796,366 A 8, 1998 …

Robust low-frequency spread-spectrum navigation system

SF Smith, JA Moore - US Patent 7,626,544, 2009 - Google Patents
Methods and apparatus are described for a navigation system. A process includes providing
a plurality of transmitters dis tributed throughout a desired coverage area; locking the plu …

Performance of coded OQPSK and MIL-STD SOQPSK with iterative decoding

L Li, MK Simon - IEEE Transactions on Communications, 2004 - ieeexplore.ieee.org
We show that military standard (MIL-STD) shaped-offset quadrature phase-shift keying
(SOQPSK), a highly bandwidth-efficient constant-envelope modulation, can be represented …

Smoothed phase-coded FMCW: Waveform properties and transceiver architecture

U Kumbul, N Petrov, CS Vaucher… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Smoothed phase-coded frequency modulated continuous waveform (SPC-FMCW), which is
aimed to improve the coexistence of multiple radars operating within the same frequency …