Showing posts with label navigation. Show all posts
Showing posts with label navigation. Show all posts

Friday, November 16, 2018

Why military forces transferred to use GPS?

https://crisisofdemocracticstates.blogspot.com/

Kimmo Huosionmaa

Many times people ask, why military forces use GPS, and what is the problem with an Inertial navigation system, what is used in rockets and what has the vital role in the nuclear submarines and aircraft. The reason for that is very simple. The inertial navigation system records all route of the vehicle, and following that track could the enemy locate the secret military bases locations if they find the Inertial device in some aircraft, and this makes this system complicated.

Every change, of course, is recorded in that system and that makes easy to target the weapons to that thing, and that makes the Inertial risky. But the other reason, why GPS is more popular is, that this satellite-based system can make possible to locate own troops from the area, and that makes possible to use tactical firepower more effectively. And if the GPS is used in bombs, that system allows sending the target data straight to the bomb, when the aircraft is in airborne, and those systems can change the target very fast. This makes GPS-bomb effective against all fixed target.

This is why the jamming systems against those satellite navigation systems are under research. The system, what would someday replace the GPS is the hybrid system, there are multiple sensors. Maybe it uses GPS only in a couple of seconds, and then the system transfer to use other navigation methods like some version of Loran, or Inertial navigation system. The hybrid version of Inertial navigation would work with the same method, the beginning point of the trip would be located by using GPS, and then Inertial would continue to navigate the vehicle.

The advanced version of Loran would work like normal radio compass, but the system would use more coherent radio signals and thin areas, those system bases in Maser-technology. Those very sharply targeted transmissions allow to locate the aircraft very sharply. Also, there could be used DSMAC-(Digital Scene Matching Area Correlation) navigation, what allows those aircraft or ships navigate very sharply without GPS.

This navigation system was replaced TERCOM in the late 1980's when the lower price of the microchips made possible to create computer-based solutions for missiles and other weapons. The system is developed originally for missiles, and it bases that the cameras are making an image from the area what is under the aircraft, and that thing is compared with the images, what are in the memory of the computer. If the images are matching, the location of the vehicle is correct. And ships can use SONAR to make that image.

The most modern versions of that navigation system are using LIDAR, what is the name of the Laser-radar, what uses light in the place, where normal radars uses radio waves. This kind of new era navigation systems can make GPS old fashion, and some of them are immune to jamming. But those systems are still under the developing, except DSMAC, what is in use at the cruise missiles. That system has been in use since the first digital cameras have been in the missiles. But the use of this system in aircraft and ships is a brand new idea, and it can revolutionize the navigation.

Saturday, March 10, 2018

The little bit more about Amelia Earhart


Amelia Earhart
(Picture 1)


Kimmo Huosionmaa

There have been big headlines of the case of Amelia Earhart in today's news. It's very sure, that if this woman known as Amelia Earhart survived the crash landing, would she send the emergency calls, but the question is, why those emergency signals were not taken seriously? If civilians heard those signals, what this woman send from the lone island, why they didn't contact the authorities or went there to look, what was the trouble? And if those messages would report to authorities, why they would not go to check, what was going on? The radio tracking equipment could locate the place, where emergency calls came, and then there would send an airplane or a ship. But why those emergency signals caused the reactions with anybody?


Those emergency calls would give by frequency, what is reserved only for emergency calls. And there would be more than one transmitter in the plane. The experienced pilot or any other adventurist ever left their life in the hands of a single device. So if the crew of the airplane wanted to give emergency signal they must only push the button and automatic transmission begins. The radios had the accumulator- or battery backup, and that's why that equipment ever left the person in trouble, even if they were in the adventure flight.


If there were sent only one transmission, that might be missed by one operator. But if those calls were given simultaneous, that would be no miss. Of course, those pilots knew about international emergency call signal, and the bigger ships were also heard that. If the emergency signals were heard, every ship in that area had to turn to that transmitter. Experienced radio-operator sends one message, waits for a reply and if there would be no reaction, that person would try again in a couple of minutes. And of course, Earhart had own secret code if Noonan were drunk or violent. Noonan is the very unusual name, and if this man made some mistakes, would those stories came to knowledge.  He was in service of Pan Am before this flight and the question is why this man retired? Was there something, what he wanted to hide?
Picture 2


Was it flying in drunk, or was he do something else in his flight career, and that is the reason. why Pan Am kicked this man away, even if this man made flight routes in Pacific ocean.  Some persons think that maybe this person was fly guns to IRA or cocaine from South America in the service of Mafia or even took part of shooting innocent people from airplanes in Africa or Brasilia, and that might be the reason to kick this man off the Pan Am. Or maybe this man was homosexual, and that was red clothes to Pan Am directors. There are many stories about this tragedy, and maybe they are only legends. And there are many false claims about this kind of cases. But why Noonan retired from his job and wanted to establish the new pilot school in Florida, might have some connections to the case of Earhart.


Many of those photographs that are taken from those persons together are like situation pictures. Not portraying pictures, and in some of those pictures that are taken with sponsors and other men, Noonan seems to act like some kind of "boss". And he seems very serious person. He seems like bothering about publicity and Earhart was actually seemed like more relaxing. In some photographs Noonan  had suit on, and he seems like to act something else than pilot.

Typical picture of Earhart
and Noonan
(Picture 3)


There are many theories what happened on that plane. Sometimes I have faced theories, that those pilots committed suicide. In this theory both of them had cancer, and they knew that they would die, and decided to make the suicide for avoiding pains, what that sickness causes. Another version of this theory was, that the family of Amelia Earhart wanted to transform this magnificent woman more common.


And there were called the doctor's psychiatrical institute to make their delusion true. In this theory is the aspect that Earhart was rebellious like many other fascinated persons are, and then somebody of her family was called the psychiatrist to help them. And this was meant the end of this magnificent woman, who decided to make suicide. Those places had the bad reputation in that time, and maybe this could explain this sad accident. But we cannot say anything before the wreck of the airplane would be found.

Sources:

https://www.mtv.fi/uutiset/ulkomaat/artikkeli/80-vuotta-sitten-maailmanymparilennolla-kadonneen-amelia-earhartin-kohtalo-todennakoisesti-selvinnyt/6801606

https://www.mtv.fi/uutiset/ulkomaat/artikkeli/uusi-teoria-lentajalegenda-amelia-earhartin-kohtalosta-lahetti-jopa-100-hataviestia/6148258

https://en.wikipedia.org/wiki/Fred_Noonan

Picture 1.

https://mymodernmet.com/wp/wp-content/uploads/2017/07/amelia-earhart-alive-3.jpg

Picture 2.

http://www.aerospaceweb.org/question/conspiracy/earhart/earhart-noonan.jpg


Picture 3.

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRdeJBK73jxazfy_VCohFzvzcrLm9qemIZVSikq8BmVeeDnQLRr





http://crisisofdemocracticstates.blogspot.fi/p/the-little-bit-more-about-amelia-earhart.html

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