Essays about: "Linearity Tests"

Showing result 6 - 10 of 18 essays containing the words Linearity Tests.

1. 6. Monitoring illicit drugs of abuse in wastewater from Umeå, Örebro, Örebro University and Örebro University Hospital

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Tove Slettvoll; [2022]
   Keywords : ;

   Abstract : Illicit drugs constitute a class of contaminants whose emissions to the environment has drawn attention due their potent pharmacological and biological activities. The monitoring of illicit drugs in wastewater and surface waters provides a powerful tool to investigate the presence, trends and to estimate the consumption of these psychoactive substances at the community level. READ MORE

3. 7. Methods to simulate resistance at high resolution and accuracy

   University essay from Uppsala universitet/Elektricitetslära

   Author : Ola Jansson; [2021]
   Keywords : variable resistance; digital potentiometer; potentiometer; simulate; resistance; variabel resistans; digital potentiometer; potentiometer; simulera; resistans;

   Abstract : In this paper, four methods to simulate or generate electric resistance at high resolution have been developed, tested and evaluated. Each method is called a Resistor Simulator and are numbered from one to four. READ MORE

4. 8. Integrated antenna switch for NB-IoT

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Fredrik Zetterblom; Yunus Dawji; [2018]
   Keywords : T R Transmit Receive switch; RF switch; integrated RF switch; Narrowband Internet of Things NB-IoT ; CMOS; frontend; Technology and Engineering;

   Abstract : Transistors are used in all digital devices today. The demand of faster and smaller devices such as mobile telephones and computers constantly drives the develop- ment of smaller transistor technologies. Transistors can also be used in analog applications. Today there are commercial chips with both radio and digital sys- tems in the same package. READ MORE

5. 9. Nonlinearity In Exchange Rates : Evidence From African Economies

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Ndey Isatou Jobe; [2016]
   Keywords : Nominal Exchange Rates; Linear Models; Random Walk Model; Smooth Transition Autoregressive Model; Linearity Tests; Unit Root Tests; Forecast Evaluation.;

   Abstract : In an effort to assess the predictive ability of exchange rate models when data on African countries is sampled, this paper studies nonlinear modelling and prediction of the nominal exchange rate series of the United States dollar to currencies of thirty-eight African states using the smooth transition autoregressive (STAR) model. A three step analysis is undertaken. READ MORE

6. 10. Different Digital Predistortion Techniques for Power Amplifier Linearization

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Ibrahim Can Sezgin; [2016]
   Keywords : DPD; Digital Predistortion; Forward Behavioral Modeling; Power Amplifier; Non-Linearity; Memory Effect; Volterra Series; Memory Polynomial; Generalized Memory Polynomial; Simplified Volterra Series; Augmented Complexity Reduced Generalized Memory Polynomial; Augmented Complexity Reduced Simplified Volterra; Technology and Engineering;

   Abstract : Linearity and high efficiency are crucial requirements for any power amplifier. However, power amplifiers have high efficiency levels when they are in non-linear regions. To overcome this issue there have been many suggestions in literature, one of the most successful methods is digital predistortion method. READ MORE