Wideband receivers for multistandards operation can simplify the system and lower the cost. In a wideband receiver, the tolerance of large interference signal within the operating band is important. Traditional frequency-domain filtering suffers from lacking in filtering capability for in-band interference signals. This paper describes a receiver system exploiting nonlinear transfer function. Based on the fundamental nonlinear theory, the receiver with nonlinear method can provide frequency-independent filtering for large blockers and linear amplification for weak desired signals simultaneously. The interference suppression performance depends on the amplitude discrimination between the envelope of the large and small signal. The operation of the nonlinear receiver is based on the amplitude of the interferer envelope. A feedforward path is designed to extract the envelope information of the interferer and a feedback path is added to keep track of the environment. With frequency-independent filtering, the nonlinear receiver system enhances both in-band and out-of-band linearity, thus enabling wideband multimode operation.
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2jqn25F
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Publication date: October 2017 Source: International Journal of Biological Macromolecules, Volume 103 Author(s): Mingan Yu, Duqiang Liu, ...
-
Abstract Endurance exercise generates CO 2 via aerobic metabolism; however, its role remains unclear. Exogenous CO 2 by transcutaneous d...
-
FS Teni, AS Surur, A Hailemariam, A Aye, G Mitiku, AE Gurmu, B Tessema Annals of Medical and Health Sciences Research 2015 5(6):454-460 ...
-
Publication date: October 2017 Source: Free Radical Biology and Medicine, Volume 111 Author(s): Mengqing Xiao, Huiqin Zhong, Lin Xia, Yong...
-
Abstract Background Studies exploring the association between physical activity, screen time and sleep and pain usually focus on a limit...
-
RT @caonline : The role of extranodal extension in staging head and neck cancers: http://ift.tt/2qV1As1 #hncsm https://t.co/MxlLX4Olo6 f...
-
One third of adult patients with orthognathic surgery of a prognathic or retrognathic mandible show relapse. The sagittal split osteotomy of...
-
Abstract This paper analyzes the most and least used upper limb aquatic equipment for hydrotherapy/hydro kinesiology specialists in the tr...
-
Abstract Wheat germ has an important enzymatic activity, being lipases the enzymes which cause the highest impact in the reduction of shelf...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου