In this paper, we study the performance benefits of cell search algorithm. The purpose of the cell search algorithm in UMTS is to estimate the spreading code of the serving base-station and its corresponding timing offset. The search procedure consists of 3 sequential and distinct stages: (1) slot-boundary synchronization, (2) frame-boundary synchronization with code-group identification, and (...

Usage-based approaches have become increasingly important in research on language acquisition and recently also bilingual first acquisition. Lexically specific patterns, such as What’s this? frame-and-slot [I want X] play an role scenarios. The ubiquity of conventionalized chunks patterns supports the idea that children construct their early utterances out concrete pieces they heard stored befo...

Variable dwell-time code acquisition based on multiple-dwell or sequential linear tests is investigated for direct-sequence spread-spectrum systems on time-variant Rayleigh fading channels. Not like in the conventional additive white Gaussian noise channels, the channel memory incurred by fading renders the exact analysis of the acquisition systems extremely difficult, if not impossible. In thi...

This work was supported by the Brain Korea 21 Project. Abstract~The effective use of multiple antennas is investigated for code acquisition. A generalized acquisition scheme is proposed for DS/CDMA systems with multiple antennas. The proposed scheme provides means of a trade-off between two important factors determining the mean acquisition time, which are referred to as combining gain and sear...

Memory analysis has gained popularity in recent years proving to be an effective technique for uncovering malware in compromised computer systems. The process of memory acquisition presents unique evidentiary challenges since many acquisition techniques require code to be run on a potential compromised system, presenting an avenue for anti-forensic subversion. In this paper, we examine a number...

In this paper, a novel detection method called the twin-cell detection is addressed for spread spectrum code acquisition in the presence of fractional Doppler frequency offset (FDFO). When the FDFO exists, the correlation peak used for detection during the acquisition process is split into two smaller neighboring peaks, resulting in severe degradation in the detection performance (and, conseque...

Screening by automated high-throughput microscopy has become a valuable research tool. An essential component of such systems is the autonomous acquisition of focused images. Here we describe the implementation of a high-precision autofocus routine for imaging of fluorescently stained bacteria on a commercially available microscope. We integrated various concepts and strategies that together su...

The 10 things you should know about sign languages are the following: (1) Sign have phonology and poetry. (2) vary in their linguistic structure family history but share some typological features due to shared biology (manual production). (3) Although there many similarities between perceiving producing speech sign, of language can impact aspects processing. (4) Iconicity is pervasive lexicons ...