While there is no set rule for preparing for the signal and systems module of GATE, there are usually two routes or a combination of both that is advised to students. You can either focus on theoretical books and samples like Julius O Smith to study or you can follow online learning tutorials like Edx open software to get clear concepts.

Preparation Tips:

• To begin with, students must always have an in-depth understanding of the foundation subjects. This means starting your study module from between will only cause you to have unclear concepts. It is an exceptionally important topic, and hence students must focus on understanding the concept of Impulse Response and Convolution.

• Learn the impact of shifting and scaling operations on the waveform to understand continuous and discrete-time signals.

• For problem-solving questions, it is important to focus on Properties of transforms, analysis and synthesis equations, and common transform pairs. If you have the time, try to learn about all the properties since it can be asked as a direct question.

• The Fourier transform and Laplace transform are two very important concepts that can contribute to higher marks because of its direct approach.

• Students must also study the final value and initial value theorem with stability verification.

• The idea of stability and causality in Z Transform and Laplace can be very scoring if system properties need to be identified from the pole-zero plot.

• Students can also practice drawing two separate types of waveforms keeping sampling frequency and Nyquist frequency in mind. The concepts of Nyquist Rate, Nyquist Frequency, and Band-Pass sampling theorem are all incredibly important.

Study Material:

For practicing and learning materials students can find the following.

• Main Text Book by Schaum series

• Signal Systems by Prof SC Dutta Roy or Oppenheim

• Kreatryx Practice Question booklets

• GATE questions from previous years

Signals & Systems has the highest weightage of marks and so it can easily become a high-scoring subject if prepared well. Practicing a large number of problems while understanding core concepts is mandatory to get a score in the subject.

Keeping these points in mind will surely help students in getting a good score in signals and systems for GATE.

In the following, some important tips are listed that will be quite beneficial for taking preparation for IIT-JAM Geology.

• The first and foremost thing is to collect and go through the previous year’s questions. Most students avoid the subjective type questions, but it is important to make sure that the B.Sc level concept of the student is obvious.
• Analyze the topic, which is frequently asked. Presently, a 30% prediction from the nat section can be made. You will observe repetition in every section but the way of asking can be different. 
• Go through the previous year’s GATE questions, but focus on the syllabus of B.Sc level.
• However, there are also some questions from M.Sc level, but these are rare. So, do not waste time practicing these questions, as these contribute only 5-7%. For these types of questions, you can practice previous year’s M.Sc level questions and can search for similar questions from CSIR NET, GATE, etc.
• For the last 3-4 years, the nat section questions are coming from the higher secondary syllabus. You should cover the topics like physical chemistry, inorganic chemistry, and mechanics, as all these have a usage in Geology.
• Besides, prepare topics including, waves, gravitational, coordination no., magnetism, thermodynamics, the periodic table, force and motion, ray optics, thermal, solid and fluid bodies properties, redox reaction, light radioactivity, Mole concept, electromagnetic radiation, equilibrium, general isolation, solid-state, chemical bonding, and atomic structure.
• Read a single topic at a time, specifically from the books covering most of the parts. It will give a better understanding of the concept of structural geology. 
• Download and buy questions like Shakeel Ahmad, Azhar Hussain, and Ausuf Sayeed. It will assist in getting the topic-related idea and the type of questions.
• Make notes from the chapter that you find difficult.

Practise is essential. You will find a better understanding of the topic and the entire syllabus. It will be better if you practice from the diverse question sets, as it will clear your perspectives.