Antenna array distributions and their associated patterns are now designed on physical principles, based on placement of zeros of the array polynomial. An overview of the synthesis processes is given. Robust and low Q distributions for linear arrays and circular planar arrays, that provide variable side lobe level pencil beam patterns, are treated in detail. Associated difference patterns are i...

PURPOSE Mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS), as a brain network disorder, has given increased importance to resective surgery. We aimed to examine the short-term postoperative functional network reorganization in patients with unilateral MTLE-HS using resting-state functional magnetic resonance imaging (Rs-fMRI) data with a longitudinal design. METHOD Seventeen ...

Aiming to resolve azimuth-dense targets in interference environments, the radar needs have ability of single snap echo angular super-resolution with anti-interference. To solve problem, algorithm based on while anti-interference blocking matrix method is studied for active phased array (APAR) this paper. Since conventional MUSIC and iterative adaptive (IAA) are limited echo, re-weighted least s...

The spectrum allocation policies of the Federal Communications Commission (FCC) [1] only allow spectrum access to primary users, it has been proven by various spectrum measurement campaigns that, the current spectrum usage across time and frequency is inefficient. Therefore, in order for the secondary users to access the unused portions of the licensed spectrum, the concept of “spectrum pooling...

Sequences having better autocorrelation properties play a crucial role in enhancing the performance of active sensing systems. Hence, sequences with good are very much demand. In this paper, we addressed problem designing unimodular sequence side-lobe levels. We formulated it as constrained optimization comprising Integrated Side-lobe Level (ISL) metric and then proposed an effective algorithm ...

Multiple input multiple output antenna is the key technology which enables design of 5G networks. In order to achieve desired beam forming and side lobe reduction capabilities, antennas used in MIMO are required feed with signals having different phase amplitude. It possible variable shift attenuation using shifter amplitude limiters. However when these devices between source antenna, they make...

The effect of removing parts of unfertilized and fertilized eggs of Dentalium has been studied. Up to 70 % of the volume of a 1st polar lobe can be removed from the vegetal side of both unfertilized and fertilized eggs, without influencing apical tuft formation. The post-trochal region is reduced. These eggs form a reduced polar lobe at first cleavage. After removal of more than 70 % of the vol...

Digital filtering is one of the main fundamental aspect of Digital signal processing, So Digital filters are widely used in many digital signal processing applications. In this paper low-pass FIR filter is implemented using an efficient adjustable window function based on Blackman window function. In this adjustable window function for a fixed length the bandwidth of main lobe and side lobe amp...

The less depolarized lobe of a radio source is generally the lobe containing the jet (Laing-Garrington correlation) but the less depolarized lobe is also generally that with the flatter radio spectrum (Liu-Pooley correlation). Both effects are strong; taken together they would imply a correlation between jet side and lobe spectral index, i.e. between an orientation-dependent feature and one whi...