Understanding Phase Shift Keying

[@SekaiClayton]

Thank you for this youtube university remains undefeated.

[@alijavadyfar3778]

Brilliant! Super illustrative explanation about the how offsetting the constellation affects PAPR!

[@pauldenisowski]

Thanks!

[@Leggiebeans]

I kind of stumbled onto this video, knowing nothing about any of this, but you do a great job of explaining it

[@jrf2112swbellnet]

Thank you for the explanation. Much clearer now. I would appreciate the R&S service manuals being as clear as this. Then I might be able to fix my R&S equipment.

[@osmantokluoglu]

At 3:10, 011 on the negative side of the x-axis must be 001

[@adrianfox9431]

Thank you. Helped me study this for my Ham Radio exm

[@pauldenisowski]

Congrats! 73 DE KO4LZ

[@sk.samiulreza6205]

What an excellent video and explanation! Hats off!

[@pauldenisowski]

Thank you!

[@melem7808]

thank thank u , im just havin a collage exam on this topic and this realy simpfiled what i studied and is a great recap of the psk modulation

[@pauldenisowski]

Glad it helped - thanks for the feedback!

[@johnreese2231]

Thanks for the great video! I still have one question though: At 0:29 you can see the face shift marked with the red circles. But: You stil have an electromagnetic wave right? When having a normal dipole antenna you cant just send two "low signals" right? Doesnt it have to be a oscillating waveform?

[@Rohde-Schwarz]

Hi John, We've received your question, and we are routing it to one of our experts to assist you. We'll get back to you soon!

[@pauldenisowski]

Hi John -- thanks for the question. You are correct that all RF is an oscillating waveform. That said, there are numerous ways of representing a "low" state with an oscillating waveform. For example, in ASK (amplitude shift keying), a "low" state is usually the lack of the oscillating waveform (!). In FSK (frequency shift keying), the "low" or "zero" state is usually the lowest discrete frequency used, and in PSK, a "low" state is somewhat arbitrarily defined as one of the phase states. In all cases (except the on-off ASK keying), an oscillating RF waveform is always present. Hope that helps!

[@ChaseR_SvG]

The cases I have worked with in regards to BPSK is in RADAR pulsed RF applications. Despite the change in phase, the amplitude & frequency at 0 and 180 degrees will be the same. Except for the brief moment that it passes near the origin. The signal(sine wave) never stops radiating until the end of the pulse period. The easiest examples to understand are barker codes. Say you had an 11 bit barker code represented as +++---+--+- and a pulse duration of 11us. The pulse is active for 11us with the first 3us as 111 next 3us as 000. And so forth.

[@jonahlehner3855]

excellent video

[@pauldenisowski]

Thanks!

[@SilmarioSousa-o8j]

Amazing explication!

[@pauldenisowski]

Thank you!

[@venstom24]

Dude, thank you for your explanations and presentations. This video hepled me with questions from my teacher of theory radio technical signals. I didn't find russian books about this, but can you advice me any book? My English is not that good, but I think I can read and realize this. Thank you!

[@kazishihabulislam8659]

3:09 011 is mentioned twice . It would be [correct me if i am wrong] going clockwise 000 001 011 010 and so on

[@pauldenisowski]

Good catch - yes, that is a typo and you are correct. Thanks!

[@InamKhan-kg8wx]

great, thank you

[@tonytan5361]

Hi. Is the differential QPSK you show is actually pi/4 QPSK because I read something different from other resources ?

[@ianchng3220]

yea same, from what i gathered from my resources, DQPSK involves differential encoding and decoding of the signal to determine phase differences between symbols, the DQPSK scheme shown in the video looks more like pi/4 QPSK

[@meraba3275]

amazing

[@j.fkamaldeen]

Thanks

[@WijthaGayan]

Thanks you

[@nevergiveup7660]

sir can you send me this presentation i need it.

[@zerobow9413]

nice !

[@BrandonMeeks-i2q]

Miracle Knolls

[@adammontgomery7980]

Why don't you want to transition through the origin?

[@DewayneMcCullum-y5p]

Cartwright Well

[@ClarissaSibyl-o9k]

Fritsch Knoll

[@PullmanWerner-v1q]

Tremblay Stravenue

[@KennethDavis-w7c]

Turner Forges

[@StephenDominic-h2u]

Bradtke Extensions

[@DanielRoss-k8w]

Gleason Knolls

[@sandrafordres2471]

9720 Keeling Plaza

[@RushBoys-e6v]

Schowalter Harbors

[@StoweMorse-d5k]

Marshall Avenue

[@FrancesWoodrow]

2440 Stracke Shoal

[@VirgilCosta-w4d]

Bergstrom Terrace

[@JonsonBert-m1n]

Rempel Lights

[@EugeneTracy-o1f]

Blick Inlet

[@ChristopherCommons-i8p]

Schmidt Shoal

[@MarilynBallard-h8p]

Laron Orchard

[@CarllyleJulia]

3250 Bechtelar Streets

[@DierserChloe-r5o]

Waters Extension

[@MagdalenMoselle-o7t]

Schiller Roads

[@MollBradley-f7j]

Langworth Circle

[@MaryVanmeter-u5m]

Hettinger Ridge

[@GeraldineHansen-s5s]

5896 Rohan Lights

[@TroyIruegas-k2w]

Aaron Vista

[@LueDuffee-g7y]

Eleanora Canyon

[@GraigLetko-g8s]

Brayan Point

[@BethHull-o9p]

Skiles Cliffs

[@LeslieWright-s3r]

Ericka Wall

[@ClarissaPaul-u8l]

Daphney Well

[@NormanCowans-p2v]

Alexzander Centers

[@MabelJackson-y9g]

Ernest Throughway

[@KeppelAlice-f9q]

Gustave Unions

[@VogtJames-f1u]

Simonis Shore

[@BarbaraJackson-g1p]

Chandler Mission

[@PatienceRenee-m4d]

Tierra Throughway

[@FinnGeraldine]

Rogahn Knoll

[@DesireeMarks-o4d]

Keshawn Rapid

[@CarrieAdams-d6t]

Otis Crescent

[@WebsterHugo]

562 Jordy Spur

[@OscarLum-q1w]

Senger Shore

[@PaulaLovell-g1k]

Barrows Squares

[@MollyWilliford-r7f]

Blanda Plaza

[@HeidiLittlefield-j9u]

Alphonso Spring

[@LoriKarnes-j3k]

Leannon Fords

[@WadeRodriguez-i4l]

Fay Curve

[@ErnestWellman-p9z]

Alanna Cape

[@WagnerHardy-h2b]

Howell Square

[@ReedJoy-h5x]

Axel Street

[@GardenCarol-h8z]

5651 Medhurst Tunnel

[@DwightNieto-p6m]

Mellie View

[@GretchenTemple-z4y]

Damion Ridges

[@TrinidadCaudill-q8j]

Reichel Shoal

[@SweetScott-e1f]

Gorczany Lodge

[@ThomasFlores-w9k]

Americo Stravenue

[@ThompsonDarlene-t2c]

Gutmann Grove

[@JustinPermenter-t4r]

Rosanna Spur

[@JaneJack-x8s]

Bradtke Crest

[@BeatriceGenesis-e4v]

Nicolette Brooks

[@pauleedavidson9251]

2589 Mertz Street

[@HansenJulius-e4z]

O'Kon Walks

[@JacobGilbert-x6q]

Cole Road

[@JohnLong-z6y]

Thompson Divide

[@MaloryKeith-b2g]

Lebsack Locks

[@PeggieGriswold-d9x]

Gerhold Hills

[@HowardTomlinson-x5f]

Salvatore Inlet

[@CarnegieMaria-w7q]

Griffin Shores

[@LucyAnn-o6m]

Justina Parks

[@WycliffeAlva-o8u]

Wisoky Grove

[@LeoFuentes-c5d]

Jakubowski Lodge

[@CatharineBart-w4b]

Cyrus Curve

[@MarkDavis-k4s]

Brenna Gateway

[@AnitaPurdy-m9c]

McClure Route

[@BenjaminCarol]

7664 Champlin Streets

[@GracieOtto-t3z]

Wyman Grove

[@GranthamGladys-f3g]

Karlee Overpass

[@MatthewHopkins-u4x]

Brooklyn Harbor

[@BackMiddleton-o2t]

Laney Fords

[@JesusBritt-c7z]

Eddie Valleys

[@LynchRuby-v2z]

Andres Ports

[@RobinRollins-t9d]

Shakira Spring