Page 9 - Doppler Effect News Today

Doug, whats the latest on the search? >> reporter: it was an unproductive day. a storm so common in that area of the world has called off search efforts. the malaysian. he announced yesterday at the plane went down in the middle of the southern indian ocean. some saying the malaysian governments response to this has been inept again has demonstrated incompetence with that remark. >> i would love to hold out hope for families but that plane went south. >> reporter: the radar analysis was based on...

Assumptions regarding auto pilot speed. the analysis arrived at a path of flight which was peer reviewed by britains air safety agency. the air accidents investigation branch. before being submitted to malaysian authorities yesterday. >> this is the first time weve ever been asked to try to find something with just a single signal once an hour. really a great tribute to our scientific team they managed to achieve this. in very simple terms, we have used the difference in speech in which the sign...

This is called the doppler effect. the inmarsat technique analyzes the difference between frequency at tha a ground station expects to receive and what is actually measured. this difference is the result of the doppler effect and is known as diverse frequency offset. diverse frequency offset changes depending on the location of the aircraft on an arc of possible positions. its direction of travel and its speed. in order to establish confidence in this theory, inmarsat checked its predictions usi...

Now, what we know is that this working group will be heavily reliant on the data that particularly countries like the united states and the united kingdom can offer. we know that they relied on the united kingdoms inmarsat satellite data, the doppler effect that looked at the frequency and velocity of the aircraft to work out that it did likely end its journey in the southern indian ocean. which is why they decided to go and announce that they believe all hope was lost in finding mh-370 and thos...

The northern pathway because none of the pings we got match with the northern route. but they have much match with the projected southern route. the match is pretty much inescapable. martha: he then went on to say i wish i could tell these families there i any hope, but he believes there is not. >> i agree there isnt any hope but i dont agree thats the final word. martha: when you look at the technology they are using. they talk about the doppler effect. if you drive down the street and you honk...

Descending sound from the horn. anything that make waves from the ocean to sound waves and light waves. they were able to more closely pinpoint the location of that plane using the doppler effect. thats how they decided the plane went down in the indian ocean. martha: the technology is remarkable. reaction from the chinese government? reporter: they are demanding to see this new satellite data. keep in mind the evenings in this part of the world between these countries is emreally high. it was e...

Assumptions regarding auto pilot speed. the analysis arrived at a path of flight which was peer reviewed by britains air safety agency. the air accidents investigation branch. before being submitted to malaysian authorities yesterday. >> this is the first time weve ever been asked to try to find something with just a single signal once an hour. really a great tribute to our scientific team they managed to achieve this. in very simple terms, we have used the difference in speech in which the sign...

Piece. this is about in-depth analysis, understanding the data and being able to extract information that it was not designed to do. remember, these inmarsat satellit satellites, 22,000 miles up are there to pass data about the status of the aircraft, status of the aircrafts engines. so youre repurposing that and trying to work the math and work back through the information to determine location data and extract it out of this data that it truly wasnt meant to provide. >> and its interesting bec...

This equation. another part is called the doppler effect. you hear weather people talk about it all the time. in terms of the location on the earth, just for understanding it, imagine the satellite is about 22,000 miles above the earth if you went straight down. if it sent a signal out, a handshake with a plane out back, that would mean that the plane is in a certain area. then, if you did it again and it were further, took longer to get that signal, it would suggest that it was further out some...

Or outside the circle. thats the doppler effect. ill take you to what i believe the doppler effect is especially for the first ping. we say 2:11. within a couple hundred miles. the plane was flying inside the ring which means it was getting closer to the satellite itself. so this is doppler radar. we use doppler radar to know this is tuscaloosas tornado. is th this is moving this way by doppler shift. we knew at the time there was a tornado on the ground right there at tuscaloosa. where else can...