'Baseband signal' presentation slideshows

Baseband signal - PowerPoint PPT Presentation


Lecture 3  Data Encoding and Signal Modulation

Lecture 3  Data Encoding and Signal Modulation

Lecture 3  Data Encoding and Signal Modulation. Introduction  Data Encoding and Signal Modulation  Advantages of Signal Modulation  Amplitude Modulation Amplitude Modulation of Digital Signals  Reducing Power and Bandwidth of AM Signals  Frequency Modulation

By tomai
(248 views)

Medical Instrumentation #10

Medical Instrumentation #10

Medical Instrumentation #10. Electro-magnetic Spectrum, Modulation&Demodulation. 제출일 : 2014. 06. 03. 생체의공학과 2010103789 박 준 환. 1 ) Audio Frequency. 1. Electro-magnetic Spectrum. * 20 ~ 20,000 Hz ( 초음파 : 20,000Hz 보다 크다 ). 2) Radio Frequency. (1) Low Freq : 30kHz(10km) ~ 300kHz(1km)

By mimis
(131 views)

Modulation

Modulation

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By soo
(100 views)

Digital Transmission through the AWGN Channel

Digital Transmission through the AWGN Channel

Digital Transmission through the AWGN Channel. ECE460 Spring, 2012. Geometric Representation. Orthogonal Basis Orthogonalization (Gram-Schmidt) Pulse Amplitude Modulation Baseband Bandpass Geometric Representation 2-D Signals Baseband Bandpass

By natala
(176 views)

ECE4331, Fall, 2009 Communication Systems

ECE4331, Fall, 2009 Communication Systems

ECE4331, Fall, 2009 Communication Systems. Zhu Han Department of Electrical and Computer Engineering Class 4 Sep. 4 th , 2009. Review. +. +. Coherent Decoding and Amplitude Decoding.

By mariel
(94 views)

Modulation

Modulation

Modulation. Modulation: Encoding information in baseband signal and then translating (shifting) signal to much higher frequency prior to transmission Primary goal is to transport information thru MRC with the best quality (low BER), lowest power, & least amount of frequency spectrum

By deion
(115 views)

Amplitude Modulation

Amplitude Modulation

Amplitude Modulation. Basic AM. Modulation Amplitude Spectrum Carrier Sideband Modulation index 0 < m < 1 How to measure? Modulated carrier vs baseband signal What happens when m>1?. Waveforms. Base Band and Modulation m = 100% m = 120% Math Real. Spectrum.

By micol
(255 views)

Representation of Signals and Systems (Chapter III)

Representation of Signals and Systems (Chapter III)

Representation of Signals and Systems (Chapter III). Simon Haykin, Communication Systems. Wake-up jokes. C'mon baby, do the locomotion with me - tule lapsi, tee minulle höyryveturi Rock me baby - kivitä lastani Love me tender - rakasta hampaitani/rakasta minua hiilivaunussa

By wan
(229 views)

RF Circuit Design

RF Circuit Design

RF Circuit Design. Chris Fuller Chris_Fuller@IEEE.ORG 952-607-8506 11/7/2012. Design Process. Define Requirements Design Prototype Design Review Build Test Analyses Review Iterate Design Process. Define Requirements. Communication distance Data Rates including security

By bill
(243 views)

3b. Bluetooth Communications (01/21)

3b. Bluetooth Communications (01/21)

3b. Bluetooth Communications (01/21). Bluetooth Communications . 802.15. Bluetooth is considered as a secure short-range wireless network. A cable replacement technology 1 Mb/s symbol rate Range 10+ meters Single chip radio at low power & low price ($5). Why not use Wireless LANs?

By osanna
(172 views)

EE 6331, Spring, 2009 Advanced Telecommunication

EE 6331, Spring, 2009 Advanced Telecommunication

EE 6331, Spring, 2009 Advanced Telecommunication. Zhu Han Department of Electrical and Computer Engineering Class 9 Feb. 17 th , 2009. Outline. Review Slow Fading Fast Fading Flat Fading Frequency Selective Fading Rayleigh and Ricean Distributions Statistical Models. RMS Delay Spread.

By mikayla-maldonado
(222 views)

Modulation Formats

Modulation Formats

Modulation Formats. Modulation Formats. General. Optical communication systems are carrier systems . This implies that a wave of a frequency much higher than that of the information ( signal) is used to enable the

By martina-oriole
(200 views)

Modulation Formats

Modulation Formats

Modulation Formats. Modulation Formats. General. Optical communication systems are carrier systems . This implies that a wave of a frequency much higher than that of the information ( signal) is used to enable the

By devin-parks
(173 views)

Aliasing Frequency Detection In a Communication Receiver

Aliasing Frequency Detection In a Communication Receiver

Due to cost pressure, device complexity and size issue, most of the digital communication receiver designers try to avoid very sharp Anti Aliasing filter. And because of that aliasing frequency e.g. image frequency e.g. ghost cell frequency appear inside the digital baseband, which apparently remained un noticed to the receiver. As receiver is blind about that signal so, it processes the aliasing signal frequency as a desired cell frequency and if the aliasing signal is strong enough, then the initial mobile receiver's operations like, cell search and camp on etc. will be successfully performed using that aliasing signal. Later, during the uplink transmission time the receiver will discover that it has wrongly camped to an aliasing frequency, as network will not respond to mobile receiver's message due to mismatch in DL and corresponding UL ARFCN.Here in this paper, a simple, fast and efficient method is proposed to detect the presence of aliasing frequency in the received digital baseband signal. First the dc power at 0 Hz is estimated using I and Q signal average, then that is compared with the dc power after rotating by p radian e.g. fs 2 half sampling frequency in case of a twice oversampled received signal . If the estimated dc power before rotation is much higher than the dc power after rotations that will indicate there is no aliasing frequency present in the received digital baseband signal. And in such case, the receiver will process further the received signal, otherwise it will discard or take the appropriate action to combat the aliasing. Dr. Om Prakash | Dr. Sajal Kumar Das | Dr. N. Rajesha \"Aliasing Frequency Detection In a Communication Receiver \" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-5 , August 2017, URL: https:\/\/www.ijtsrd.com\/papers\/ijtsrd2279.pdf Paper URL: http:\/\/www.ijtsrd.com\/engineering\/electronics-and-communication-engineering\/2279\/aliasing-frequency-detection-in-a-communication-receiver--\/dr-om-prakash\n

By ijtsrd
(0 views)

2 01 8- 20 1 9

2 01 8- 20 1 9

رهاط ةزمحلا .م : ةداملا سردم. 2 01 8- 20 1 9. Digital Communications. CTE Department -3 rd stage Reference: Digital Communications Fundamentals and Applications, 2 nd Addition, by FernardSklar. Dr. Hussam Dheaa Kamel Al-Mustafa University Collage CTE Department 2018-2019.

By csilvana
(0 views)

Communication  is the transfer of information from one place to another.  This should be done

Communication is the transfer of information from one place to another. This should be done

Overview. Communication is the transfer of information from one place to another. This should be done - as efficiently as possible - with as much fidelity/reliability as possible - as securely as possible

By lisaf
(0 views)

Lecture 1B  (01/07) Signal Modulation

Lecture 1B  (01/07) Signal Modulation

Lecture 1B  (01/07) Signal Modulation. Introduction  Signal Analysis Advantages of Signal Modulation  Amplitude Modulation Amplitude Modulation of Digital Signals  Reducing Power and Bandwidth of AM Signals  Frequency Modulation Power and Bandwidth of FM Signals  Conclusion.

By bassc
(3 views)

Parameters of Mobile Multipath Channels

Parameters of Mobile Multipath Channels

Parameters of Mobile Multipath Channels. Relationship between Bandwidth and Receiver Power. What happens when two different signals with different bandwidths are sent through the channel? What is the receiver power characteristics for both signals?

By nhartley
(1 views)

Communication, data transfer

Communication, data transfer

Communication, data transfer. 2. Baseband signals, line coding 2018. 04. 14. Categorization. Medium Coding Modulation Number of symbols (size of alphabet) Spectral efficiency SNR, error correction, clock recovery, etc. Medium. Wire ”simple” copper wire coaxial cable wave guide

By rroe
(0 views)

EE350: Communication Systems

EE350: Communication Systems

EE350: Communication Systems. Modulation (AM, FM, PAM), Demodulation and Noise Fairfield University: School of Engineering DoctorD: Jeffrey N. Denenberg jeffrey.denenberg@ieee.org http://doctord.webhop.net. The Communication Problem. Get information from here to there Channel challenges

By jdenton
(2 views)

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