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31 Phased array radar, is to use phase-shifting electronically controlled antenna array as the main components of a radar.

32 Thermal deformation error of Phased Array Antenna is one of the most primary factor that influent electrical performance of antenna, so it is very necessary to lucubrate.

33 A key to analyze the space target surveillance capability of phased array radar is to establish its proper operational model.

34 The design that embedded computer is applied to phased array radar built - in test equipment is introduced.

35 By control phased array antennas in real time, the motion compensation system will guarantee the invariableness of the antenna direction and gain high resolution radar images.

36 Compared with the conventional phased array radar, MIMO radar may acquire a better target detection performance by exploiting space diversity and signal diversity techniques.

37 A novel beam steering system of a conformal cone-borne phased array is presented here.

38 A target multipath DOA estimation algorithm based on frequency agility for phased array radar is introduced.

39 The structure design of a leveled unit with high accuracy for the antenna pedestal of a phased array ballistic measurement radar is introduced, several schemes are compared in this paper.

40 China has had to develop its own phased array radar for it.

41 However,[sentencedict .com] the instantaneous bandwidth of signals is restricted for general phased array because of its transition time and aperture effect.

42 Many formulae used to calculate fixed phase distribution for the array lens, configuration curve of the dielectric lens and aperture phase of a feed phased array are derived.

43 A new - state active weighted phased array radar transmitter is introduced.

44 In this paper, we present a new phased array antenna calibrating technique - Mid - field Calibrating Technique ( MFCT ).

45 The design of a characteristic phased array 3D radar antenna system is discussed and the main path realizing the center of three-in-one combination is proposed in this paper.

46 No matter which of the three possible methods of phase scanning is used in a phased array system[sentencedict.com], the objective is a relative phase shift of the energy being radiated by each element in the array.

47 An optical true time delay (TTD) is a means for optically controlling phased array antennas (PAAs).

48 It was shown that using polystyrene as wedge material, high polymer as transducer material and curved wedge as an acoustic lens was the key point of application effectiveness for phased array system.

49 A new partial discharge ( PD ) location method based on UHF and ultrasonic phased array receiving theory is presented.

50 Inspection scheme of offshore platform structure ultrasonic phased array was also presented, and the reference block of offshore platform structure was detected by this system.

51 From the point of view of 2-D DBF phased array radar, this paper discusses the influence of channel errors on the system performance and the method for channel balance.

52 Phased array radar is working most at track-while-scan(TWS). Its data rate factor can be separated scan data rate factor and tracking date rate factor.

53 This paper goes on with analysis of the phased array radar calibration theory and compare of different schemes, then the best is adopted.

54 The effects of element failure and tolerance on antenna sidelobe level and gain in solid-state active phased array is mainly discussed in this paper.

55 Result of verification shows that the SoC solution meets the development trend of phased array radar beam steering system with high speed, high level, miniaturization and integration.

56 Secondly, by using the concept of Smith chart and the equivalent circuit model, the basic theory of the broadband phased array based on mutual coupling is presented.

57 Now, focus transducers have three kinds of types: Focus transducer, acoustic lens, phased array focusing system.

58 Chapter 2 discusses digital beamforming ( DBF ) of phased array radar and the amplitude and phase errors.

59 Equipted with it, phased array radar could have Adaptive beam, lower Side - lobe beam and beam scanning.

60 The adaptive monopulse at subarray level is required for applying monopulse technique in multi-function phased array radar.