(a) Obtain the radar equation and discuss various parameters which improve the performance of radar. Make private notes for specific questions. endstream endobj Mark questions for later review or set various question flags. Download Microwave and Radar Books – We have compiled a list of Best & Standard Reference Books on Microwave and Radar Subject for Electrical Engineering & Electronics and Communication Engineering Students & for Graduates.These books are used by many students & graduates of top universities, institutes and colleges. Built-in navigation computers (CR-3 and E6B). Due to this, the range of the target seems to be smaller than the actual range.So, we have to select the duration between the two clock pulses in such a way that the echo signal corresponding to present clock pulse will be received before the next clock pulse starts. The function of the Target reflects this received signal in various directions. If we select a shorter duration between the two clock pulses, then the echo signal corresponding to present clock pulse will be received after the next clock pulse. $$R_{un}=\frac{C\left ( \frac{1}{f_P} \right )}{2}$$We can use either Equation 3 or Equation 5 for calculating maximum unambiguous range of the target.We will get the value of maximum unambiguous range of the target, $R_{un}$ by substituting the values of $C$ and $T_P$ in Equation 3.Similarly, we will get the value of maximum unambiguous range of the target, $R_{un}$ by substituting the values of $C$ and $f_P$ in Equation 5.Substitute, $R=R_{min}$ and $T=\tau$ in Equation 1.We will get the value of minimum range of the target, $R_{min}$ by substituting the values of $C$ and $\tau$ in Equation 6. 1196 0 obj It is having a series of narrow rectangular shaped pulses. <>>>/TilingType 2/Type/Pattern/XStep 674/YStep 674>>stream Academia.edu is a platform for academics to share research papers. It uses the same Antenna for both transmitting and receiving the signals. Then, we will get the true range of the target and it is also called maximum unambiguous range of the target or simply, From Equation 2, we will get the pulse repetition time, $T_P$ as the reciprocal of pulse repetition frequency, $f_P$.
The duration between the two clock pulses should be properly chosen in such a way that the echo signal corresponding to present clock pulse should be received before the next clock pulse. Let us now discuss the principle of radar.Radar is used for detecting the objects and finding their location. 1194 0 obj Table of Contents: If it is defined to detect a target with a cross section of 12 sqm and the minimum detectable signal is -90dBm.
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Discuss specific questions with other students through comments. 1193 0 obj The distance between Radar and target is called Range of the target or simply range, R. We know that Radar transmits a signal to the target and accordingly the target sends an echo signal to the Radar with the speed of light, C. Let the time taken for the signal to travel from Radar to target and back to Radar be ‘T’.
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endobj Radar And Navigation, RAN Questions For placement and exam preparations, MCQs, Mock tests, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Celestial Navigation ... •Decca navigation is a low-frequency hyperbolic navigation The officer on watch must be able to maneuver the ship in any conditions: adverse weather and sea conditions, high-density traffic areas. endobj ԏ� ������zPo�(�J�_@ �o���Vw0��ψ���b ���=f����k ��̒>� ؏K����d�b}�R`� ��^��$���J���`��=�G� ���v�ٳmn�u%��ώ��?��9 ��0�=I��y�C���� ���� ��@��n�z�Ϳ�D��C��a|t ��V�Qf��li����I�G� y��~�3B������n|t P�_�fO�}�R`�T�{ �b�����,��,��/�I���1�`|��g�c ��Yx�Ƚ��6�pwe���\�� ���w���~����2�����胹���Z�� �ûY��f϶��[Rl���O�=� nB�� Z�p�lcǓ��T�g�h ���%rW�v���l���Q����1�X�����{�= lCHx��v��3�>���d��/�����=� n�?�K�~��%�����}`���O @ħ�k���~�7�w,���6�-��u��`���{�a�z��W4�_ۓ�;�o�!����@C.��p��=����N�@�s��{�= �J�߅�]e�2������?�$��~�����q= �GU�ϕ���6�e3*�"����{O��� 0�J�K䮍��/-q's�_�U���� �`�{��c{��5�z��5������ 2�}0|W��&wUfw:}!�G���)Ə�}x��������=��6�u>!_��;c~��k�=���~� Please Note : This List Is Not The Final … The Radar Range Equation - the radar range equation relates the range of the radar to the characteristics of the transmitter, receiver, antenna, target and the environment. Book 1 “Radar Basics” (Revision from 20.12.2009) This educational endowment is a printable summary of the first chapter of the internet representation “Radar Basics”, containing a lecture on the principles of radar technology. Lecture notes; Course Description.
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The signal, which is reflected back towards the Antenna gets received by the Following are the basic terms, which are useful in this tutorial.Now, let us discuss about these basic terms one by one.Let the time taken for the signal to travel from Radar to target and back to Radar be ‘T’. <> Radar and Navigational Aids K M V y as D IET Rajk o t 1 ... celestial body with a sextant and notes the precise time at which the measurement is made with a chronometer K M V y as D IET Rajk o t 13 . endobj 14. 2 0 obj