Results 31 to 40 of about 5,925,887 (294)
Blind adaptive carrier phase recovery for QAM systems
Digital Signal Processing, 2016 AbstractThis paper provides a study of adaptive phase recovery in quadrature amplitude modulation (QAM) based communication systems. Here, we modify the traditional fourth-power phase recovery algorithm (FP-PRA) to propose three improved algorithms, and analyze their performances in the presence of additive white Gaussian noise, phase noise, frequency ...
Shafayat Abrar +2 more
openaire +2 more sources
Multi-Format Carrier Phase Recovery Using a Programmable Circuit
, 2021 We introduce an application-specific circuit that can be programmed to efficiently perform blind carrier phase recovery for different modulation formats.
B\uf6rjeson, Erik, Larsson-Edefors, Per
core
Pediatric Blood &Cancer, EarlyView.ABSTRACT Relapsed and/or refractory (R/R) pediatric acute leukemia carries a dismal prognosis, largely driven by chemoresistance to conventional salvage therapy. The BH3‐mimetic venetoclax, combined with chemotherapy or hypomethylating agents, has demonstrated efficacy in small clinical trials.
Katherine S. Colman +9 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric refractory immune thrombocytopenia (rITP) is generally characterized by persistent thrombocytopenia and failure to achieve a sustained response to multiple standard therapies. We report a 4‐year‐old female with congenital tufting enteropathy, post‐intestinal transplant patient on immunosuppressants, who developed severe rITP ...
Sarah Hsieh +4 more
wiley +1 more source
Performance of qpsk system in the presence of pulse interference and noisy carrier reference signal [PDF]
Serbian Journal of Electrical Engineering, 2003 The aim of this paper is the determining the system performance in detecting the QPSK signal. The error probability is determined when the signal, Gaussian noise, pulse interference and imperfect carrier phase recovery are taken into consideration. Phase
Stefanović Mihajlo +2 more
doaj +1 more source
Progress in High-Speed and High-Precision Laser Interferometric Surface-Figure Analysis
Applied SciencesHigh-speed and high-precision laser interferometric surface-form analysis must balance acquisition speed, phase accuracy, spatial resolution, and systematic-error control. With interferogram acquisition, phase extraction, and phase unwrapping as the main
Shanghua Zhang +7 more
doaj +1 more source
Estimation of BER from Error Vector Magnitude for Optical Coherent Systems
Photonics, 2016 This paper presents the estimation of bit error ratio (BER) from error vector magnitude (EVM) for M-ary quadrature amplitude modulation (QAM) formats in optical coherent systems employing carrier phase recovery with differential decoding to compensate ...
Irshaad Fatadin
doaj +1 more source
The critical role of hot carrier cooling in optically excited structural transitions
npj Computational Materials, 2021 The hot carrier cooling occurs in most photoexcitation-induced phase transitions (PIPTs), but its role has often been neglected in many theoretical simulations as well as in proposed mechanisms.
Wen-Hao Liu +3 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Central nervous system (CNS) relapse of neuroblastoma carries a poor prognosis, and craniospinal irradiation (CSI) poses substantial long‐term toxicity in young children. We report a toddler with MYCN‐amplified neuroblastoma harboring somatic ALK R1275Q who developed extensive leptomeningeal relapse with paraplegia.
Jinwoo Kim +11 more
wiley +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola +4 more
wiley +1 more source