0
What else can I help you with?
What is the difference between SINR and CINR?
SINR - Signal to Interference and Noise Ratio CINR - Carrier to Interference and Noise Ratio difference between those to is difference between carrier and signal carrier is signal who doesn't "carry" any information . it must be modulated( by phase,freq or amplitude) and those changes convey information. carrier is unmodulated signal signal is defined as useful signal which carries information SINR is power of signal to power of interfenence and noise ratio
Which is larger the angle of incidence or the angle of refraction why?
The angle of incidence is typically larger than the angle of refraction because light bends towards the normal when it passes from a less dense medium to a more dense medium, causing the angle of refraction to be smaller. This is known as refraction and follows Snell's Law.
What is an array processor?
The array processor, is also commonly known as the Vector Processor.Array processing is signal processing of the outputs of an array of sensors to:Enhance the signal-to-interference-plus-noise ratio (SINR) compared to that of a single sensor using conventional or adaptive beamforming.Determine the number of emitting sources, the locations of these sources, their waveforms, and other signal parameters.Track multiple moving sources.See the related link for further information.
Why does the incident angle not equal the angle of refraction?
The incident angle does not always equal the angle of refraction because of a phenomenon called refraction. Refraction occurs when light passes through a boundary between two different mediums, causing the light to change speed and bend. This bending of the light ray results in the incident angle and angle of refraction being different unless the light is entering the medium perpendicular to its surface.
What is the role of synthetic aperture radar as the only practical solution for radar remote sensing in space?
If it is a geo-synchronous satellite, there is no Synthetic Aperture RADAR, SAR, effect. SAR requires relative changes in the location of the transmitting and/or receiving antennae.If one uses SAR in a continuously cycling mode of Xmit / Receive, etc. We would derive a pseudo Doppler benefit such that, instead of just measuring the return and SINR, we could also measure relative phase differences yielding high resolution 3-D imagery.I understand that the synthetic aperture technique combines reception signals from elemental areas together. This means that the radiation "view" of the object can be made from a virtual radar aerial the gain of which is synthesisedfrom that of several small real aerials effectively to be much larger than that of each individual. With good signal amplification and control of phasing, the resolution of the image can thereby greatly be improved to a standard which would be otherwise unobtainable due to the prohibitive size and cost of such a real aerial equivalent.Synthetic Aperture Radar works by taking many looks over a long period of time with an overlap in the beam foot print's on the planet surface. These many looks are integrated together which improves the signal to noise greatly. However, in order to maintain coherency in such long integration periods motion compensation is needs to be performed to increase the time to de-correlation, such that it can achieve the signal to noise required. Synthetic aperture differs from other sharpening techniques like Doppler beam sharpening as it exploits the own vertical own motion and the many looks to synthesises a very long antenna. The increased signal to noise provides longer range and the fast motion of the space vertical provides the ability to get many looks in a shorter time period. But to answer the question it is Long Range ground/surface mapping and 3D topography definition antennas.
