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pseudo
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while dealing with radio telescopes how can we remove the noise and other disturbances like microwave radiation etc.
sysreset said:I have often wondered the same thing myself. I think pseudo meant radio frequency noise such as radio transmissions. We're bathed in electromagnetic signals: AM, FM, XM, VHF, UHF, Shortwave, GPS, Digital Pager waveband, Mobile Phone waveband, Wireless internet waveband, 2.4 GHz, 5.8 GHz, Bluetooth come to mind. Some of these signals must get out to the large array fields.
pseudo said:there u got me sysreset. there is somthing called as fouriertransform which removes noise . can sm1 tell me how it is used ?
Noise in radio telescope observations refers to any unwanted or extraneous signals that are received by the telescope and can interfere with the detection and analysis of the desired signals from celestial objects. This can include interference from human-made sources, atmospheric conditions, and other natural sources.
Noise removal is important in radio telescope observations because it allows for a clearer and more accurate analysis of the signals from celestial objects. By removing the unwanted noise, scientists can better understand the properties and characteristics of these objects, leading to new discoveries and advancements in the field of astronomy.
Noise removal from radio telescope observations can be achieved through various techniques such as filtering, averaging, and signal processing algorithms. These methods aim to isolate and remove the unwanted noise while preserving the desired signals from celestial objects.
While noise removal techniques can greatly improve the quality of radio telescope observations, there are some limitations. These include the possibility of removing some of the desired signals along with the noise, as well as the fact that some types of noise may be difficult to filter out completely.
The type of radio telescope can affect noise removal in several ways. For example, larger telescopes with higher sensitivity may be able to detect and remove smaller levels of noise. Additionally, the design and technology of the telescope may impact the effectiveness of noise removal techniques. Therefore, it is important for scientists to carefully consider the telescope used in their observations when implementing noise removal methods.