单词 | Doppler shift |
例句 | 1. The principle of using a Doppler shift to indicate flow velocity can be applied with sound waves instead of light waves. 2. When this Doppler shift is converted to relative velocity it turns out that the velocity varies sinusoidally with time. 3. The cosmological redshift is not a normal Doppler shift. 4. A conception on change rate angle displacement on Doppler shift has been presented by analogism. 5. And now you measure the Doppler shift of star two as a function of time. 6. All this comes out of Doppler shift measurements: the velocities, the radii, the periods and even the masses of these objects. 7. Furthermore, applying the Doppler shift method, one can find the mass of a star. 8. We report the Doppler shift of Na spectroscopy changing with the slow wave factor in a slow wave microwave field the reason of the phenomenon is discussed. 9. Well, you can only now measure the Doppler shift of the donor, because the donor, in general, is quite well visible. 9. is a sentence dictionary, on which you can find excellent sentences for a large number of words. 10. Electrophoretic mobility is determined from Doppler shift by using a non-invasive and quick technique called Electrophoretic Light Scattering. 11. Imagine now you can make the Doppler shift measurements of both stars. 12. Doppler Shift in satellite communication should not be ignored for the satellites with relative motion. 13. Doppler shift is unavoidable in underwater acoustic communications because of relative moving between the transmitter and the receiver. 14. In the satellite navigation and positioning system, Doppler shift is one of the key problems that may degrade the performance of the satellite receiver. 15. Content summary: The mobile has the Doppler shift effect, the proving time is four Uygur. 16. This paper has discussed the way of probing Doppler shift signal based on crossed phase detecting method in detail and introduced each function circuits briefly. 17. Because those organs are moving, the frequency of the reflected radiation is Doppler shifted by a tiny amount. 18. After I/V conversion, inverse function transformation, differential and calculation circuits, the Doppler shift can be obtained. Then the time-dependent velocity of the moving grating can be given. 19. Simulation result shows that the system a good performance in multi - path fading and Doppler shift channel. 20. But you will not be able to measure the Doppler shift of the black hole-- no pulsations. 21. Authorized Bandwidth The necessary bandwidth required for transmission and reception of intelligence. This definition does not include allowance for transmitter drift or Doppler shift. 22. It is an economical and effective method to observe and study ionospheric movements by using HF Doppler shift and angle of arrival techniques. 23. If you have a binary system whereby both stars are visible so you get the spectrum of both stars, then you see the Doppler shift of both stars in the spectrum. 24. And so you get all this useful information in astronomy by making the Doppler shift measurements of binary systems. 25. And the wireless communication is the most complex, because there is multipath, Doppler shift, co-channel interference and so on under terrestrial environment. 26. So by timing the pulses of the x-rays, you can get a handle on the Doppler shift of the neutron star. 27. By means of user-defined m files in MATLAB modeling typical flat fading channel such as rician fading channel and rayleigh fading channel are derived, comprising with and without doppler shift. 28. The sixth chapter studies the techniques in measuring the bearings changing rate and centrifugal acceleration, and poses several algorithms of measuring pulse Doppler shift frequency changing rate. 29. The main reasons of bit - error - rate in underwater acoustic communication are serious multipath fading and Doppler shift. 30. The analysis and simulation shows that this radar system has higher range resolution and insensitivity to Doppler shift, etc. 31. The channel of LEO satellite is different from wireless channels on the ground. Low SNR and large Doppler shift are the two characteristic of LEO satellite channel. 32. Utilizing lidar to obtain the wind velocity along the line of sight by Doppler shift, then inverting these velocity vectors to real atmosphere wind group speed is a very important purpose of lidar. 33. So now we have a situation that I just described earlier that you have the Doppler shift of both objects, and remember, I told you that you also get the masses. |
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