Pulse compression for a simple pulse

Shinriki, Masanori; Takase, Hiroshi; Susaki, Hironori

doi:10.1109/taes.2008.4667737

Cited by 14 publications

(5 citation statements)

References 8 publications

(10 reference statements)

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“…(3) Different modulation types for pulse compression have been widely used in radar; these may include the most famous phase-coded and LFM [4], a new manner of pulse compression for simple pulse where the desired signal waveform has a frequency characteristics selected to get low peak sidelobe levels [5], and a proposed phase coded pulse compression mechanism to explain the weather targets return is presented in [6] with performance comparison of various filters and inverse filters used to suppress the unwanted sidelobe.…”

Section: Ahmed Azouz Sameh Ghanem and Abdelrahman Elbardawinymentioning

confidence: 99%

A New Sidelobe Cancellation Method for LFM Radars

Azouz

Ghanem

Elbardawiny

2018

The International Conference on Electrical Engineering

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Compression technique is a vital tool commonly used in radar to increase range resolution and signal to noise ratio. Pulse compression allows achieving the performance of a shorter pulse using a longer pulse and hence gain of a large spectral bandwidth. Unwanted signals from sidelobes returns affect the detection capability of any radar. Different sidelobe reduction/cancellation techniques based on pulse compression for Linear Frequency Modulated (LFM) radars have been deployed and addressed before. In this paper, a new optimum filter for enhancing radar detection capabilities of LFM radars is introduced. The proposed filter response is compared with the windowed classical matched filter response associated with Hamming window function. The filter is implemented using Software Defined Radio (SDR). A practical test has been carried to investigate its performance. Results show superior performance of our proposed matched filter compared to that of classical versions

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Section: Ahmed Azouz Sameh Ghanem and Abdelrahman Elbardawinymentioning

confidence: 99%

A New Sidelobe Cancellation Method for LFM Radars

Azouz

Ghanem

Elbardawiny

2018

The International Conference on Electrical Engineering

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“…Shinriki, et al, [8] have proposed a new pulse compression method for simple pulse. This method has a filter whose impulse response in frequency domain is the ratio between the desired waveform and input signal in frequency domain.…”

Section: Literature Surveymentioning

confidence: 99%

Low Power LFM Pulse Compression RADAR with Sidelobe suppression

Archana¹,

priya²

2014

IJAREEIE

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ABSTRACT:One of the parameters of the pulsed RADAR that contributes range capability is the average power of the transmitter. The average power can be increased by increasing the peak power or transmitted pulse width or both. The complexity in the design of transmitter components to withstand high peak power is the most challenging task. On the other hand larger transmitted pulse width affects the RADAR capability to detect and track lower range targets. Maximum detection range of RADAR is increased by larger pulse width which in turn results in poor range resolution and poor range measurement accuracy. So narrow pulse width is preferred and therefore only the peak power of the transmitter should be increased. Pulse compression is a technique to enhance the average power of the RADAR without compromising range resolution and maximum detectable range. It is a process of transmitting a longer pulse and on receiving compressing it to a shorter pulse. The emphasis of LFM (Linear Frequency Modulation) pulse compression method combines both the benefits of long duration and short duration pulses to enhance range and range resolution of RADAR without increasing the peak transmit power. But the pulse compression of LFM signal with matched filter introduces sidelobes which is objectionable in a way that they may mask smaller targets in vicinity. The solution to this problem is to introduce windowing technique to suppress the side lobes. A simulation was run to compare various windowing techniques (Hamming, Hanning, Blackman, Flattop, Bartlett) in LFM Signal for effective side lobe suppression in low power RADAR.

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“…Many kinds of modulation in radar that used for pulse compression such as the phase-coded and LFM pulse, which is the most widely, used [4]. Many papers introduced the pulse compression advantages in radar systems such as Susaki, in [5], which a new manner of pulse compression is illustrated for simple pulse.The desired signal waveform has frequency characteristics, which selected to get low peak side lobe level. In [6], a proposed phase coded pulse compression mechanism is presented to explain the weather targets return.…”

Section: Introductionmentioning

confidence: 99%

New Side Lobe Cancellation Method of Linear Frequency Modulated Radar Signals

Salem*

2020

IJITEE

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Pulse Compression (PC) technique has many advantages in signal processing of radar systems which enhances the radar performance. For a long pulse, the range detection capability can be increased with PC while maintain the advantage of resolution in range for uncompressed pulse. There are many PC techniques such as Binary and Linear Frequency Modulation (LFM) Codes, which can be utilize in radar. The radar detection performance is affected by unwanted signals, which called side lobes that may mask the weaker useful signals, which are present near to strong signals. Pulse compression that uses LFM code is discussed and contrasted with matched filter keep tracked of Hamming windowing filter technique to eliminate the level effect of side lobes. In the present paper, a proposed optimum filter is introduced to enhance both the radar detection capability and resolution in range. The proposed optimum filter representation is evaluated and compared with the classical matched filter response associated with Hamming windowing filter according to the representation of radar detection through Receiver Operating Characteristics (ROC) curves and resolution performance.

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Pulse compression for a simple pulse

Cited by 14 publications

References 8 publications

A New Sidelobe Cancellation Method for LFM Radars

A New Sidelobe Cancellation Method for LFM Radars

Low Power LFM Pulse Compression RADAR with Sidelobe suppression

New Side Lobe Cancellation Method of Linear Frequency Modulated Radar Signals

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