en:rmds
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- | ====== Radio Meteor Detector | + | ====== Radio Meteor Detector |
- | Detector set RMDS01A is the basic SDR receiver set for radio detection of meteor trails. Compared to other methods, its main advantage is in fact, that it uses software-defined receiver, that enables various advanced signal processing techniques. | + | RMDS01A |
+ | {{ : | ||
+ | |||
====== Meteor detection using GRAVES radar ====== | ====== Meteor detection using GRAVES radar ====== | ||
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==== Necessary equipment ==== | ==== Necessary equipment ==== | ||
- | - Receiver [[cs: | + | - Receiver [[en: |
- [[http:// | - [[http:// | ||
- | - 2x power module [[cs: | + | - 2x power module [[en: |
- 2x Power Supplies 12V [[http:// | - 2x Power Supplies 12V [[http:// | ||
- Coaxial cable RG58 [[http:// | - Coaxial cable RG58 [[http:// | ||
- | - Preamplifier [[cs: | + | - Preamplifier [[en: |
- 3x SMA cable connector [[http:// | - 3x SMA cable connector [[http:// | ||
- UHF connector - panel socket and cable jack (for antenna construction). | - UHF connector - panel socket and cable jack (for antenna construction). | ||
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=== 1/4 Ground Plane === | === 1/4 Ground Plane === | ||
- | This is the basic antenna for receiving the signal reflected from ionized trails. It has an advantage in having a small size, so it can be installed on balcony, terrace etc. Its simple construction enables easy assembly and this makes it particularly suitable for beginners. | + | This is the most basic antenna for receiving the signal reflected from ionized trails. It has an advantage in having a small size, so it can be installed on balcony, terrace etc. Its simple construction enables easy assembly and this makes it particularly suitable for beginners. |
The main drawback is the emitting characteristic, | The main drawback is the emitting characteristic, | ||
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Other interesting experiment could include the use of two crossed dipoles over conducting plane. This would probably enable the integration of amplifier directly into the antenna and the creation of the active antenna with better noise parameters and reliability than separated assembly of GP antenna and LNA. | Other interesting experiment could include the use of two crossed dipoles over conducting plane. This would probably enable the integration of amplifier directly into the antenna and the creation of the active antenna with better noise parameters and reliability than separated assembly of GP antenna and LNA. | ||
- | The [[http:// | + | The [[http:// |
==== Preamplifier LNA01A ==== | ==== Preamplifier LNA01A ==== | ||
- | High quality preamplifier is necessary to operate with this type of antenna due to low gain and low intensities of reflected signal. | + | High quality preamplifier is necessary to operate with 1/4 Ground Plane type of antenna due to low gain and low intensities of reflected signal. |
- | [[http:// | + | [[http:// |
==== Coaxial connectors ==== | ==== Coaxial connectors ==== | ||
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Software-defined receiver developed primarily for radioastronomical experiments, | Software-defined receiver developed primarily for radioastronomical experiments, | ||
- | === Signal | + | === Signal |
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===== Detection limits ===== | ===== Detection limits ===== | ||
- | The sensitivity of system has not been yet experimentally tested, because of the missing data from other sources that can be used for comparison. | + | The sensitivity of system has not been yet experimentally tested, because of the missing data from other sources that can be used for comparison. |
===== Frequency stability ===== | ===== Frequency stability ===== | ||
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{{: | {{: | ||
- | We have used Asus EEE, that is particularly suitable | + | We have used Asus EEE, that is particularly suitable |
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=== Power backup === | === Power backup === | ||
- | Another advantage of autonomous system would be the possibility to use compact power backup system, eg. with the help of [[cs: | + | Another advantage of autonomous system would be the possibility to use compact power backup system, eg. with the help of [[cs: |
=== High time resolution === | === High time resolution === | ||
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===== TODO ===== | ===== TODO ===== | ||
- | * Prozkoumat možnost ovládání Si570 přímo ze SpectrumLabu http:// | ||
- | * Připravit .deb balíček pro instalaci na Linuxové stanici. | ||
- | * Připravit zadání diplomové práce (vysilač pro detekci meteorů) | ||
- | * Meteory rušenie [[meteory rusenie]] | ||
- | ===== Související konstrukce | + | * To investigate the possibility of handling the Si570 directly through [[http:// |
+ | * To create .deb installation packet for Linux station. | ||
+ | * To invent diploma theses (concerning the transmitter for meteor detection) | ||
+ | ===== Related constructions | ||
- | * Visuální meteorický detekční systém | + | * Visual meteor detection system |
- | ===== Reference | + | ===== References |
- | * [[http:// | + | * [[http:// |
* [[http:// | * [[http:// | ||
* http:// | * http:// | ||
- | ==== Podobné projekty | + | ==== Similar projects |
* [[http:// | * [[http:// | ||
- | * [[http:// | + | * [[http:// |
- | * [[http:// | + | * [[http:// |
en/rmds.1372264299.txt.gz · Last modified: 2013/06/26 16:31 (external edit)