-
Because of the poor observability of Inertial Navigation System on stationary base, the estimation
error of the azimuth will converge very slowly in initial alignment by means of Kalmari filtering, and making the
time initial alignment is longer. In this paper, a fast estimation method of the azimuth error is creatively proposed
for the initial alignment of INS on stationary base. On the basis of the the fast convergence of the leveling error,
the azimuth error can be directly calculated. By means of this fast initial alignment method, the time of initial
alignment is reduced greatly. The computer simulation results illustrate the efficiency of the method.
標簽：
observability
Navigation
estimation
stationary
上傳時間：
2014-01-03
上傳用戶：wuyuying
-
Use the links below to download a source distribution of Ant from one of our mirrors. It is good practice to verify the integrity of the distribution files, especially if you are using one of our mirror sites. In order to do this you must use the signatures from our main distribution directory.
Ant is distributed as zip, tar.gz and tar.bz2 archives - the contents are the same. Please note that the tar.* archives contain file names longer than 100 characters and have been created using GNU tar extensions. Thus they must be untarred with a GNU compatible version of tar.
If you do not see the file you need in the links below, please see the master distribution directory or, preferably, its mirror.
標簽：
distribution
download
mirrors
source
上傳時間：
2014-01-06
上傳用戶：xuanchangri
-
Use a one-dimensional array of primitive type boolean to represent the seating chart of the
plane. Initialize all the elements of the array to false to indicate that all the seats are
empty. As each seat is assigned, set the corresponding elements of the array to true to
indicate that the seat is no longer available.
標簽：
one-dimensional
primitive
represent
the
上傳時間：
2013-12-22
上傳用戶：zhichenglu
-
Compression using lempel-ziv
-for a dictionary size of 2k
-provide dictionary
Lempel ziv algorithm is a dictionary based algorithm that addresses byte sequences from former contents instead of the original data. This algorithm consists of a rule for parsing strings of symbols from a finite alphabet into substrings, whose lengths do not exceed a prescribed integer and a coding scheme which maps these substrings sequentially into uniquely decipherable code words of fixed length. The strings are selected so that they have nearly equal probability of occurrence. Frequently-occurring symbols are grouped into longer strings while occasional symbols appear in short strings.
標簽：
dictionary
Compression
lempel-ziv
provide
上傳時間：
2014-01-07
上傳用戶：我們的船長
-
C programming is a craft that takes years to perfect. A reasonably sharp person can learn the basics of
C quite quickly. But it takes much longer to master the nuances of the language and to write enough
programs, and enough different programs, to become an expert. In natural language terms, this is the
difference between being able to order a cup of coffee in Paris, and (on the Metro) being able to tell anative Parisienne where to get off. This book is an advanced text on the ANSI C programming
language. It is intended for people who are already writing C programs, and who want to quickly pick
up some of the insights and techniques of experts.
標簽：
programming
reasonably
perfect
basics
上傳時間：
2013-12-20
上傳用戶：ls530720646
-
TPMath is a library of scientific programs written in Pascal. Available in several versions according to the compiler, it is proposed as an alternative to the famous Numerical Recipes, for which the Pascal version is no longer developed, or to the Borland Numerical Methods Toolbox which is no longer available.
標簽：
delphi
math
上傳時間：
2015-03-06
上傳用戶：y_flin
-
Guided vehicles (GVs) are commonly used for the internal transportation of loads in warehouses, production plants and terminals. These guided vehicles can be routed with a variety of vehicle dispatching rules in an attempt to meet performance criteria such as minimizing the average load waiting times. In this research, we use simulation models of three companies to evaluate the performance of several real-time vehicle dispatching rules, in part described in the literature. It appears that there
is a clear difference in average load waiting time between the different dispatching rules in the different environments. Simple rules, based on load and vehicle proximity (distance-based) perform best for all cases. The penalty for this is a relatively high maximum load waiting time. A distance-based rule with time truncation, giving more priority to loads that have to wait longer than a time threshold, appears to yield the best possible overall performance. A rule that particularly considers load-waiting time performs poor overall. We also show that using little pre-arrival information of loads leads to a significant improvement in the performance of the dispatching rules without changing their performance ranking.
標簽：
Testing and classifying vehicle dispatching rules in three real-world settings
上傳時間：
2016-04-01
上傳用戶：五塊錢的油條
-
In the hit CBS crime show Person of Interest, which debuted in 2011,
the two heroes—one a former Central Intelligence Agency agent and
the other a billionaire technology genius—work together using the
ubiquitous surveillance system in New York City to try to stop violent
crime. It’s referred to by some as a science fiction cop show. But the
use of advanced technology for crime analysis in almost every major
police department in the United States may surpass what’s depicted
on TV crime dramas such as Person of Interest. Real-time crime cen-
ters (RTCCs) are a vital aspect of intelligent policing. Crime analysis
is no longer the stuff of science fiction. It’s real.
標簽：
Intelligence
Analysis
Crime
上傳時間：
2020-05-25
上傳用戶：shancjb
-
In recent years, cellular voice networks have transformed into powerful packet-switched
access networks for both voice communication and Internet access. Evolving Universal
Mobile Telecommunication System (UMTS) networks and first Long Term Evolution
(LTE) installations now deliver bandwidths of several megabits per second to individual
users, and mobile access to the Internet from handheld devices and notebooks is no
longer perceived as slower than a Digital Subscriber Line (DSL) or cable connection.
Bandwidth and capacity demands, however, keep rising because of the increasing number
of people using the networks and because of bandwidth-intensive applications such as
video streaming. Thus, network manufacturers and network operators need to find ways
to continuously increase the capacity and performance of their cellular networks while
reducing the cost.
標簽：
BRINGING
NETWORKS
Beyond
and
3G
4G
上傳時間：
2020-05-26
上傳用戶：shancjb
-
From the transition of analog to digital communication along with seamless mobility and
high computing power of small handheld devices, the wireless communications industry has
seen tremendous changes leading to the integration of several telecommunication networks,
devices and services over last 30 years. The rate of this progress and growth has increased
particularly in the past decade because people no longer use their devices and networks for
voice only, but demand bundle contents such as data download/streaming, HDTV, HD video ,
3D video conferencing with higher efficiency, seamless connectivity, intelligence, reliability
and better user experience. Although the challenges facing service providers and
telecommunication companies differ by product, region, market size, and their areas of
concentration but time to market, efficient utilization of their assets and revenue expansion,
have impacted significantly how to manage and conduct their business while maintaining
sufficient margin.
標簽：
Convergence
Networks
Beyond
4G
of
上傳時間：
2020-05-26
上傳用戶：shancjb
