A Non-Uniform Interrupted-Sampling Repeater Jamming Method for Intra-Pulse Frequency Agile Radar

نویسندگان

چکیده

The existing research proposes an intra-pulse frequency agile radar waveform with “active” anti-jamming characteristics. It uses the discontinuity and periodicity of interrupted-sampling repeater jamming combines algorithm to effectively suppress jamming. In order improve effectiveness interferer for waveform, this paper jam by using a non-uniform forwarding method under parameter constraints. proposed first obtains sub-pulse width estimation intercepted signal through time–frequency ridge extraction wavelet transform. Then, we construct based on constraint interference parameters. Theoretical analysis results show that constraints makes it challenging in multiple domains, such as pulse compression domain radar, which significantly improves capability jammer radar.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Adaptive Transmitting Scheme for Interrupted Sampling Repeater Jamming Suppression

The interrupted sampling repeater jamming (ISRJ) based on a digital radio frequency memory (DRFM) device is a new type of coherent jamming. This kind of jamming usually occurs as main-lobe jamming and has the advantages of low power requirements and easy parameter adjustment, posing a serious threat to the modern radar systems. In order to suppress the ISRJ, this paper proposes an adaptive tran...

متن کامل

Efficient filter design against interrupted sampling repeater jamming for wideband radar

Interrupted sampling repeater jamming (ISRJ) is an effective coherent jamming, which can induce false high-resolution range profile (HRRP) and image to greatly complicate the target detection and recognition of wideband radar. To counter ISRJ, an efficient filter is designed based on the time-frequency (TF) characteristic differences between target echo and ISRJ. Meanwhile, a feasible jamming s...

متن کامل

Radar target echo cancellation using interrupted-sampling repeater

A method of using Interrupted-Sampling Repeater Jamming (ISRJ) to cancel radar target echo is proposed. After the principles of ISRJ are expounded, three conditions that should be met for radar echo cancellation are proposed, including range synchronization, phase coherent and amplitude match. Then, the restriction for key parameters of ISRJ, i.e. the repeater power, the delay time and frequenc...

متن کامل

A Prony-like method for non-uniform sampling

In this paper a Prony-like method for non-uniform sampling is proposed. The unknown parameters are estimated on the base of a new linear regression equation which uses filtered signals obtained directly from the measurements. The approach uses the derivative method in the frequency domain yielding exact formula in terms of multiple integrals of the signal, when placed in the time domain. These ...

متن کامل

Non-uniform time sampling for multiple-frequency harmonic balance computations

A time-domain harmonic balance method for the analysis of almost-periodic (multi-harmonics) flows is presented. This method relies on Fourier analysis to derive an efficient alternative to classical time marching schemes for such flows. It has recently received significant attention, especially in the turbomachinery field where the flow spectrum is essentially a combination of the blade passing...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Remote Sensing

سال: 2023

ISSN: ['2315-4632', '2315-4675']

DOI: https://doi.org/10.3390/rs15071851