I. RCS definitionany electromagnetic waves with a definite polarization are exposed to the target, which can cause refraction or scattering in all directions. The scattering wave is divided into two parts: one is composed of the scattering wave with the same polarization as the receiving antenna, and the two is the different change of the scattering wave, and the receiving antenna is not responding. These two polarization orthogonal, respectively called the Primary polarization (Principle polari
The concept of radar was formed in the early 20th century. Radar is a transliteration of radar, abbreviated as radio Detection and Ranging. It is an electronic device that uses microwave band electromagnetic waves to detect targets.
Composition
The specific use and structure of various radars are different, but the basic form is the same, including
ObjectiveAlthough each car has a rearview mirror, but inevitably there is a blind area of the rearview mirror, reversing radar can help the driver to remove the visual angle and blurred vision defects, improve driving safety. The previous section has analyzed the Voice module of the reversing radar (the previous section), and this section will delve into the design of the ranging module.First, the developme
Reversing radar Blind Area indicationThe woman Kai Audi reversing when the son of a year-old child, after the mouth cooked ashamed never dare to hop car again. Before night, the Nanjing District Court concluded the Volt case. "Law Morning" reporter to the 2006 to kill in the domestic car reversing the death of 26 cars, the beneficiary of 6 defeats are children, and more than half of them are under 3 years of age. And the riot vehicles to set up the ab
Laser radar has been used in military field earlier, with the development of technology and the reduction of cost, the application of LiDAR has become more and more popular nowadays, so far the field of robot, unmanned aerial vehicle and unmanned driving is becoming an important application field of LiDAR. And the price of laser radar has always been the focus of concern to the industry, the price of import
How to Create a radar chart in batches using python and a python radar chart
Preface
Sometimes radar charts are needed for work, but what if there are many groups of data? You cannot click "excel" to draw images one by one. You can use python to batch create images. The style is as follows:
First, create a demo excel, and score the excel random number generation
What does the microblogging radar mean?
Sina Weibo radar function can be located through the positioning system to search the vicinity of people, this and QQ, micro-letter near the function is the same OH.
How to use the micro-BO radar
Into the microblog, you can see the upper right corner of the radar sign.
P1325 radar installation and p1325 radar installationDescription
Description:
Assume that the coastline is an infinite line. One side is land, and the other side is ocean. Every small island is a point on the sea. The radar must be installed on land (including the coastline), and each radar has the same scanning range
new trends in radar Register, CTO, ThoughtWorks China 1. Open SourceOpen source has been transformed from a simple organization of software code into a culture, a movement. When it comes to open source, it is no longer a cheap substitute for a simple commercial product, but instead becomes a manifestation of soft power for a software company. Unlike in the past, more and more companies are now opening up their important software assets to attract ca
http://poj.org/problem?id=1328
The question test instructions is that there are more than N islands on the sea, and a radar on the coastline (x-axis) can cover the island with its distance not exceeding D, and the minimum number of radars to cover all the islands.
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The greedy idea is to convert a point to an interval on the x-axis coordinates (that is, a set of all possible locations that can guarantee coverage of the island), and the
When the laser radar's power cord and network cable arrive, the first is about the laser radar device and the connection between the computer. Although Lms5xx Chinese operation manual is not really good, a lot of things are not clear. So I suggest that we should first learn about the English language of the Operation manual. These manuals are generally included in the CD, if necessary, you can directly to www.sick.com download the required documents.
1. OK, we open "Sina Weibo" on our mobile phone and as shown in the picture we click on the "small circle" effect as shown below.
2. Then we can start the search by clicking on the middle radar icon after we enter the contents of your search.
3. For example, the small series chooses to search for "people".
Note: Sina Weibo radar since it is the search for the function of nearby people
1, we open the mobile phone on the phone fast broadcast, and then as shown in the picture we click on the top left corner of the three horizontal button
2. After entering, we find the radar effect as shown in the following figure
3, we will see the radar can be shown by the map can also be a list, we choose the map, the following figure
The second, we'll take a look at the list, more
1. The current Android phone as an example, we find already installed Baidu mobile phone defender, choose "Find More"
2. Select the "WiFi Radar" option in the pop-up option click Open to enter
3. Click on the "WiFi turned on" button, as shown in the following image
4. Then click "Yes" in the confirmation box.
5.WiFi Radar closed successfully
Note: Baidu Mobile phone
1, we in the mobile phone to open the music radar Shazam and then we click on "Automatic" will automatically search the surrounding sound, and then automatically identify, click on the middle "M" search songs, you can listen to music, the microphone with the phone, mic close to you say to find the sound source of music, you can hum, Music radar starts recording audio, searching
2, in the music recog
Document directory
1. Create a Silverlight Project
2. display a map using Bing Maps Silverlight Control
Iii. Other functional attributes
Previous Article Bing map Learning Series (1) -- preparations before development> development environment of map and some preparations, this includes downloading related software and preparing Bing map key.
Thanks to auth
The function navigation provided by Bing Maps Silverlight Control is very powerful. In terms of design, it provides great support for extensions and provides commands and buttons that can be extended and directly used by many users, if you are not clear, you can view the article "Custom navigation bar" that I wrote earlier. However, compared with the functional navigation menu provided in DeepEarth, the menu is not so bold and dynamic. I personally pr
The last article raises the question of how users can programmatically control a map.
Using the Bing Maps Silverlight control will be very easy to do, this paper mainly describes how to map some of the common controls, including map loading mode, according to the accuracy and latitude positioning, zoom degree.
This article thanks to the original author: http://www.cnblogs.com/beniao/archive/2009/11/28/1612418.htmldynamic setting of map loading mode
In
As described in the first article of this series, developing Bing Maps based on Silverlight requires a development Key in addition to the development environment. What is this Key used? The Silverlight control is an essential parameter for map rendering. It can be understood as Microsoft Bing Maps, which is an authorization Development Key activated by users, this article attempts to use a simple example dr
TIPS: loads other maps in Bing Maps Silverlight control, such as Google satellite maps and Yahoo Maps. From time to time in the past year, Microsoft and Google were both superior and inferior. The MSN signature of the day before yesterday was also changed to enterprise Microsoft vs consumer Google, which basically represented its own conclusion. In general, the two are both great companies. What is great is not just the simplicity of their products an
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