Sökning: "Polyphase"

Visar resultat 1 - 5 av 11 uppsatser innehållade ordet Polyphase.

1. 1. Polyphase Symbol Timing Synchronization on a Software-Defined Radio

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Georg Lundberg; [2021]
   Nyckelord :SDR; Software-Defined Radio; Polyphase; Symbol Timing Synchronization; Satellite Communication; MATLAB; Simulink; Xilinx; English;

   Sammanfattning : Software-defined radio is a continuously developing technology applied in fields of mobile communications and among others. It is a radio communication system where software is used to implement parts of its functionality in an embedded system or computer. LÄS MER

3. 2. Design parameterizable filter using High Level Synthesis

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Troels Maehl Folke; Wenqian Ding; [2021]
   Nyckelord :Technology and Engineering;

   Sammanfattning : As the ASIC designs continue to grow in complexity, traditional RTL level of abstraction is becoming a productivity bottleneck. The RTL design process requires extensive time and effort for verification of algorithmic correctness as well as correct timing and interface behavior. LÄS MER

4. 3. LPI waveforms for AESA radar

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

   Författare :Andreas Sjöberg; [2020]
   Nyckelord :Radar LPI waveform AESA;

   Sammanfattning : The purpose of low probability of intercept (LPI) radar is, on top of the standard requirements on a radar, to remain undetected by hostile electronic warfare (EW) systems. This can be achieved primarily by reducing the amount of radiated power in any given direction at all times and is done by transmitting longer modulated pulses that can then be compressed digitally in order to retain range resolution. LÄS MER

5. 4. Design and implementation of an SPB converter for fault tolerant PMSynRel motor control

   Master-uppsats, KTH/Elektrisk energiomvandling

   Författare :Nikolaos Apostolopoulos; [2015]
   Nyckelord :Fault-tolerant operation; multi-star motor; PCB design; permanent-magnet synchronous reluctance motor; PMSynRel; SPB; stacked polyphase bridges converter.; Feltolerant drift; multifasmaskin; PCB-design; permanentmagnetassisterad synkron reluktansmaskin; PMSynRel; SPB; stacked polyphase bridges converter.;

   Sammanfattning : The stacked polyphase bridges (SPB) converter topology is investigated in the presentthesis as a fault-tolerant choice for permanent-magnet synchronous reluctance (PMSyn-Rel) motor control. Integrated motor drive systems are studied as they offer great benefitsfor propulsion applications. LÄS MER

7. 5. Design and implementation of an approximate full adder and its use in FIR filters

   Master-uppsats, Elektroniksystem; Tekniska högskolan

   Författare :Nikhil Satheesh Varma; [2013]
   Nyckelord :FIR filters; bit-level optimization; 4:2 counter; static CMOS; DPL; 65nm process;

   Sammanfattning : Implementation of the polyphase decomposed FIR filter structure involves two steps; the generation of the partial products and the efficient reduction of the generated partial products. The partial products are generated by a constant multiplication of the filter coefficients with the input data and the reduction of the partial products is done by building a pipelined adder tree using FAs and HAs. LÄS MER