A fast acquisition technique for a direct sequence spread spectrum signal in the presence of a large Doppler shift

Stirling-Gallacher, Richard A.; Hulbert, A.P.; Povey, G.J.R.

doi:10.1109/isssta.1996.563761

Cited by 28 publications

(12 citation statements)

References 4 publications

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“…Since the two parameters need to be estimated simultaneously, the detection problem is basically a two-dimensional search problem. Here we discuss this problem for a sequence train [1][2][3][4]7,6,[22][23][24][25]. Let a signal be defined as s[k] = 0 for k ≥ M and k < 0, where M is the length of interval in which the signal exists.…”

Section: Two-dimensional Detection Problem For a Sequence Trainmentioning

confidence: 99%

Pseudo Noise Sequence Coded Continuous Radar: A Signal Processing Algorithm

et al. 2011

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In this paper we develop a novel signal processing algorithm for continuous phase coded Doppler radar using pseudo noise (PN) sequence as the phase coding signal. We exploit the correlation side lobe suppression property of PN sequence in the detection and ranging of targets. The two-dimensional detection (range and Doppler shift estimation/detection) problem is discussed briefly. A mathematical solution of the two-dimensional detection problem for continuous phase coded Doppler radar is presented. The solution is based on the generalized likelihood ratio test (GLRT) detector. Detection performance of the net signal processing algorithm is evaluated analytically. Monte-Carlo simulations support the analysis. The performance is illustrated using the family of receiver operating characteristics.

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Section: Two-dimensional Detection Problem For a Sequence Trainmentioning

confidence: 99%

Pseudo Noise Sequence Coded Continuous Radar: A Signal Processing Algorithm

et al. 2011

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“…Once the incoming PN signal has been acquired, a finer synchronization maintains the alignment of the PN codes. The process of maintaining this synchronization is referred to as tracking [8].…”

Section: Ii1 Hardware Design Of the If Channelsmentioning

confidence: 99%

High-dynamic IF Synchronizing Receiver for a New Positioning System

Zou

Dingrong

et al. 2006

2006 6th International Conference on ITS Telecommunications

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This paper presents a neii positioning scheme, and describes the IF(Intermediate Frequency) subsystem of the aircraft locating equipment. The equipment shows high performances in situations with large Doppler shifts. In order to keep the equipment as compact, lightweight and low power consumption as possible, DSP(Digital Signal Processing) and FPGA(Field Programmable Gate Array) technologies are adopted. The key parts of hardware design are introduced, and the acquisition and tracking algorithms are proposed also.

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“…In the paper, he analyzed the method of using FFT compensation method to solve the problem of large offset acquisition in the system, and the capture structure he used was the prototype of PMF-FFT algorithm. G.J.Povey, who first proposed this kind of algorithm which was based on [1] and made an efficient study and analysis [2][3][4], has gotten significant conclusions, making great contributions to the later development of the algorithm.…”

Section: Introductionmentioning

confidence: 99%

Research on An Improved PMF-FFT Fast PN Code Acquisition Algorithm

Liu¹,

Sun²,

Guan³

2013

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To solve the problem of the large Doppler frequency offset in the LEO communication system, this paper studies a rapid PN code acquisition method based on the PMF-FFT architecture, which searches the phase and frequency offset and at the same time reduces the acquisition time. It presents an improved method equivalent to windowing function and uses windowing process to overcome the attenuation of related peak envelope caused by partial matched filters.

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A fast acquisition technique for a direct sequence spread spectrum signal in the presence of a large Doppler shift

Cited by 28 publications

References 4 publications

Pseudo Noise Sequence Coded Continuous Radar: A Signal Processing Algorithm

Pseudo Noise Sequence Coded Continuous Radar: A Signal Processing Algorithm

High-dynamic IF Synchronizing Receiver for a New Positioning System

Research on An Improved PMF-FFT Fast PN Code Acquisition Algorithm

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