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Codes. 3D convolution using 5x5x5 matrix
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I applied via Approached by Company and was interviewed in May 2024. There were 3 interview rounds.
Qualcomm interview questions for popular designations
I applied via Approached by Company and was interviewed in Apr 2024. There were 2 interview rounds.
Move rotating cubes to different positions on screen and stop rotation once reached.
Create 4 animations to move each cube to left, right, bottom, and top of the screen
Add rotation animation to each cube
Stop rotation animation once cube reaches the desired position
Integrating Unity application into Android involves exporting the Unity project as an Android project and then integrating it with Android Studio.
Export the Unity project as an Android project
Import the project into Android Studio
Modify the Android manifest file to include necessary permissions and settings
Integrate UnityPlayerActivity into the Android application
Build and run the Android application on a device or emu
Get interview-ready with Top Qualcomm Interview Questions
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
I applied via Referral and was interviewed in Dec 2023. There were 3 interview rounds.
Modulation is the process of varying a carrier signal to transmit information. Different types include AM, FM, PM, and QAM.
Modulation is used to transfer information by varying a high-frequency carrier signal.
Amplitude Modulation (AM) varies the amplitude of the carrier signal to encode information.
Frequency Modulation (FM) varies the frequency of the carrier signal to encode information.
Phase Modulation (PM) varies th...
S-matrix is a mathematical representation used in RF engineering to describe the relationship between input and output signals of a linear system.
S-matrix is also known as scattering matrix.
It is used to analyze the behavior of RF circuits and systems.
S-matrix elements represent the complex amplitudes of the incident and reflected waves at each port of a network.
S11 parameter represents the reflection coefficient at po...
Different types of analog modulation schemes can be found in various communication systems.
Analog modulation schemes are used in radio broadcasting, television transmission, and wireless communication.
Some common types of analog modulation schemes include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM).
AM is used in AM radio broadcasting, where the amplitude of the carrier signal is vari...
VSWR stands for Voltage Standing Wave Ratio. It is a measure of how well a transmission line is matched to the impedance of the connected devices.
VSWR is a ratio of the maximum voltage to the minimum voltage along a transmission line.
It is used to measure the efficiency of power transfer and the impedance matching in RF systems.
A lower VSWR indicates better impedance matching and less power loss.
VSWR is important in RF...
A standing wave in a transmission line is a wave that appears to be stationary, resulting from the interference of two waves traveling in opposite directions.
A standing wave is formed when a wave traveling in one direction reflects back upon encountering an impedance mismatch in the transmission line.
The interference between the incident and reflected waves creates regions of constructive and destructive interference, ...
Amplitude modulation (AM) and frequency modulation (FM) waveforms can be represented graphically.
AM modulation: The amplitude of the carrier signal is varied in proportion to the amplitude of the modulating signal.
FM modulation: The frequency of the carrier signal is varied in proportion to the amplitude of the modulating signal.
Waveforms can be drawn to show the variations in amplitude or frequency over time.
AM wavefo...
Propagation delay is the time it takes for an electromagnetic wave to travel from one point to another.
Propagation delay is determined by the distance between the two points and the speed of light.
It is the time it takes for the wave to propagate through a medium or free space.
Propagation delay can be calculated using the formula: delay = distance / speed of light.
For example, if the distance between two points is 100 ...
A transmitter and receiver are essential components of a communication system.
Transmitter converts information into a suitable form for transmission.
Receiver receives the transmitted signal and converts it back into the original form.
Transmitter typically includes a modulator, power amplifier, and antenna.
Receiver typically includes an antenna, demodulator, and audio or video output.
Example: In a radio communication sy...
Cross talk is the unwanted transfer of signals between different components or traces on a circuit board.
Occurs when signals from one trace interfere with signals on another trace
Can lead to signal distortion or errors in data transmission
Prevented by proper spacing and shielding between traces
Example: Cross talk between data lines on a PCB causing errors in communication
Generated clocks through edges are defined by specifying the source clock and the edge on which the generated clock is based.
Specify the source clock for the generated clock
Define the edge (rising/falling) on which the generated clock is based
Use tools like Synopsys Design Compiler to define generated clocks
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
Thermal throttling is a mechanism used to prevent a device from overheating by reducing its performance.
Thermal throttling is a technique used in electronic devices to prevent overheating.
When a device reaches a certain temperature threshold, it will reduce its performance to lower the heat generation.
This can result in slower processing speeds or decreased battery life, but it protects the device from damage.
Common ex...
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