The question of the digital processing in the coherent pulse doppler radar which radiates the pulse complicated probing signal with a button type ambiguity diagram
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2013, Vol 0, Issue 52
Abstract
Introduction. The advantages of the pulse complicated signals using in the radar are well-known. These signals are signals with the high time security, the high power security or (and) the high structural security. The signal with the symmetrical linear frequency modulation, the signal with the triangular frequency modulation, the signal with the trapezoidal frequency modulation, the signal with the quadratic and with the cubic frequency intra -modulation and the signal with pseudorandom sequence have the button ambiguity function. Problem statement. It is necessary: To conduct the comparative estimation of the distance resolution and the range rate resolution (Doppler resolution) for signals with the button type ambiguity diagram; To develop recommendations for determination of the Doppler channels number; Purpose of the article. To estimate the complication of the multichannel locations high-ways realization of echo signal as the multichannel Doppler-beat frequency highway on the base of matched filters or correlators. The analysis of complicated signals potential characteristics. Potential characteristics of the distance resolution and the range rate resolution for the signal with the symmetrical linear frequency modulation, the signal with the triangular frequency modulation, the signal with the trapezoidal frequency modulation, the signal with the quadratic and with the cubic frequency intra-modulation and the signal with pseudorandom sequence are analyzed. Conclusions to advantages of these pulse complicated signals with the button ambiguity function are drawn. Recommendations for determination of the Doppler channels number are developed. The complication of the multichannel locations highways realization of echo signal as the multichannel Doppler-beat frequency highway on the base of matched filters or correlators is estimated. The block diagrams analysis result testifies that the realization of the multichannel Doppler-beat frequency correlator is technically more difficult. In this scheme there is the difficult block with the formation of a probing signal with parallel releases of the so-called Doppler copies. Conclusions. The number of the Doppler channels in the radar locations highway deter-mined by maximum target velocity by the falling possible level of the noise immunity and of the distance resolution and the range rate resolution of probing signal that is used. The use of the considered complicated signals any types provides the identical number of processing channels. The use of the signal with pseudorandom sequence supports the high time security, the high power security and the high structural security.
Authors and Affiliations
O. Mrachkovskiy, Yu. Reutskaya
Keywords
Related Articles
- EP ID EP309032
- DOI 10.20535/RADAP.2013.52.84-91
- Views 96
- Downloads 0
Analisys of microstrip photonic crystals accounting technological inaccuracy
The considered influence of technological inaccuracy on the photonic crystal features. The organized benchmark analysis experimental and accounting features.
Definition of weight coefficient in two-stage automatic compensation based on LMS-algorithm and interference correlation characteristics
Introduction. Two-stage digital automatic compensators of active noise interference based on LS and RLS-algorithms provide parallel processing of signals and capability to connect/disconnect additional compensation chann...
Neutralizing the effect of destabilizing factors on the meter’s accuracy on the basis of fiber-optic sensors with pulse modulation
Introduction. Disclaimer analog and switch to the principles of pulse modulation can significantly increase accuracy by using fiber optic sensors. Were developed precision optical fiber sensors of new class width modulat...
Analysis of similarity and discrepancy of response of linear system to etalon signal by the instrumentality of double normal transformation
Methodology of distortion estimation of input signal with dispersion of component values by the instrumentality of double normal transformation was demonstrated.
Structurally technical the aspects of measuring of concentration of easy aeroions are In-process considered the method of the opened collector
Вasic methods of measuring of concentration of easy aeroions, the features of their use, advantage, and failings are certain. It is suggested to use the method of the opened collector for measuring the concentration of e...