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IRZU INSTITUTE

IRZU INSTITUTE

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Tag: QPSK

RESEARCH

Error Performance Analysis Of Optically-preamplified Qpsk M-ary Ppm Systems Over Atmospheric Turbulent Channels

January 16, 2023admin

Fading experienced in free-space optical channels is known to impede the performance of pulse position modulation (PPM) communication systems. In this paper, we study the effects of log-normal and…Read moreError Performance Analysis Of Optically-preamplified Qpsk M-ary Ppm Systems Over Atmospheric Turbulent Channels

DATA MANAGEMENT RESEARCH

In a digital continuous-time communication system, the bit rate of NRZ data stream is 1 Mbps and carrier frequency of transmission is 100 MHz. What is the bandwidth requirement of the channel in BPSK and QPSK systems respectively?a)2 MHz and 4 MHzb)1 MHz and 2 MHzc)4 MHz and 2 MHzd)2 MHz and 1 MHzCorrect answer is option ‘D’. Can you explain this answer?

December 3, 2022admin

Question Description In a digital continuous-time communication system, the bit rate of NRZ data stream is 1 Mbps and carrier frequency of transmission is 100 MHz. What is the…Read moreIn a digital continuous-time communication system, the bit rate of NRZ data stream is 1 Mbps and carrier frequency of transmission is 100 MHz. What is the bandwidth requirement of the channel in BPSK and QPSK systems respectively?a)2 MHz and 4 MHzb)1 MHz and 2 MHzc)4 MHz and 2 MHzd)2 MHz and 1 MHzCorrect answer is option ‘D’. Can you explain this answer?

RESEARCH

Home – FlySat Satellite Chart

January 7, 2022admin

© www.flysat.com/public/index.php/en/channel/10069/iran-international Txp No SourceDate Freq PolMode SR-FEC Provider NameChannel Name System Package Encryption Comments FootPrintsEIRP(dBW) F l y S a t © Express-AM6 @ 53° E F l y…Read moreHome – FlySat Satellite Chart

RESEARCH

Novel Performance Estimation for QPSK Signals Impaired by Narrow Filtering

December 31, 2021admin

A new algorithm of error vector magnitude (EVM) for quadrature phase shift keying (QPSK) signals impaired by narrow filtering is proposed theoretically in this paper. The new algorithm can remove…Read moreNovel Performance Estimation for QPSK Signals Impaired by Narrow Filtering

DATA MANAGEMENT FFT & WAVELETS LOW VOLTAGE IC MQTT & IOT AUTOMATION

One More Long-Range, Low-Power Wireless Option Targets IoT

December 16, 2021admin

What you’ll learn: An intro to Wi-Fi HaLow. What are the IEEE 802.11ah specifications?   If you have designed or are designing an Internet of Things system, you already know…Read moreOne More Long-Range, Low-Power Wireless Option Targets IoT

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