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31. The development of organic colorants is focused at present on those with high recording sensitivity, high stability and high signal to noise ratio.

32. In terms of the temperature inversion algorithms, background noise subtraction and the wavelet denoising algorithm are used to enhance the signal to noise ratio.

33. It affects the SNR signal - to - noise ratio and the THD ( total harmonic distortion ) of a conversion.

34. The high signal - to - noise ratio and large dynamic range measurement of light signal long distance is realized.

35. It is showed that the optimal mode number was associated to the signal to noise ratio (SNR), and the Hartmann sensor was suffered from measurement noise severely in the condition of weak turbulence.

36. Then the low noise amplifier amplifies the signal. Band pass filter and correlated demodulator and other circuits were also used to improve the signal noise ratio and reach wanted amplitude.

37. In addition, the using condition of correlation detector and the relationship between the normalized correlation detector and SNR (signal noise ratio) are discussed in this paper.

38. With this approach, we can detect the number of(M-1) coherent signals with M sensors under a lower signal to noise ratio(SNR) and a smaller sampling number.

39. Compute the signal to noise ratio to show what you propose is plausible.

40. The size of transmitter loop is mainly for strength of signal to satisfy reviver sensitivity and signal to noise ratio.

41. The system provides two major functions including measuring noise temperature of low noise devices and calibrating the Excess Noise Ratio(ENR) of solid-state noise sources.

42. Matching precision and acquisition probability are gained through the number of independent pixels, signal noise ratio and the statistic of correlation functions in the process of scene matching.

43. The results showed that signal to noise ratio, detection limit and linear range were greatly improved.

44. There are many kinds of image fusion methods, such as information entropy, mutual information, mean square error, peak signal to noise ratio and mean grads.

45. Experimental results on several kinds of a stream show that the Peak Signal to Noise Ratio (PSNR) only has change while the subjective image quality improves well.

46. Completion of a given sequence to quantify and calculate the quantization error signal to noise ratio.

47. The output signal - to - noise ratio ( SNR ) in an additive white Gaussian noise ( AWGN ) channel is calculated.

48. The computer simulation is made, and the results show that this method get higher signal to noise ratio and better signal restoration(Sentencedict.com), when apply to the coherent noise corrupted digital signal.

49. QPSK the additive white Gaussian noise environment, and the signal - to - noise ratio of the simulation.

50. Experimental results showed that the new method presented here was much effective in removing white noise,[http://sentencedict.com/noise ratio.html] and gave better Peak Signal Noise Ratio (PSNR) gains than single wavelet base denoising.

51. Finally, the new assessment index is compared with classical peak signal noise ratio (PSNR) and the result is satisfied for human subjective sensation.

52. Computer simulations show that new algorithm improves peak signal to noise ratio, restoration effects and efficiency of operations, and speeds up the convergence speed.

53. The photometric signal - to - noise ratio is roughly proportional to the square root of the signal intensity.

54. At the same time it reduces the losing of the details of picture information and raises the signal noise ratio of the algorithm of median filter.

55. Using CHAMP observational data samples, the profiles of atmospheric bending, refractivity, pressure, and temperature were retrieved in tern by the series of signal noise ratio.

56. The final conclusion is: edge technique has high signal to noise ratio, small statistical errors, large measuring range in high accuracy, and can prevent back ground noise in some way.

57. The proposed method can eliminate the noise effectively and provide the improved Peak Signal Noise Ratio (PSNR) over wavelet and contourlet transform.

58. Taking account of the noise in both the calibration system and the radar echo, the signal to noise ratio (SNR) after the pulse compression of the calibrated echo is analyzed.

59. We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper.

60. Simulation results show that the average peak signal noise ratio is increased with various video sequences.