Advances in Digital Signal Processing and Applications in Electrical Engineering

Have you ever considered how Digital signal processing (DSP) can enhance your digital experience? Continue reading this blog to learn about DSP. It helps refine audio and video clarity to give you immersive visuals and a better experience.

In the changing landscape of electrical engineering, Digital signal processing changes how we analyse and manipulate signals. It can enhance functionality and efficiency in communication systems and medical devices. Let us first understand what exactly is DSP. 

What is Digital signal processing (DSP)?

Digital signal processing (DSP) is the discrete-time signal that deals with the digital signal's processing. It is a branch of engineering and applied mathematics which involves various algorithms and methods to process digital signals. As per the current report, the Digital signal processors market size is expected to reach USD 129.54 billion by 2032 with a growing CAGR of 6.5%.

If you also have a B Tech Electrical & Electronics Engineering background or plan to pursue it, you must know about DSP. Do you want to know more about DSP? How can it help electrical engineering? Let's start by discussing some of the latest advances in DSP, and then we will discuss its applications further.

Revolutionary Advances in Digital Signal Processing for Electrical Engineering

Due to rapid technological advancement, the digital signal processor market has experienced growth. Its current state is projected to be USD10.1 billion. The reasons behind the growth of the DSP are an adaptation of the Internet of Things (IoT) and 5G technology and the development of innovative communications systems.

Now, let’s discuss some exciting advancements in digital signal processing that have been making headlines in 2024. According to the report, three significant new DSPs were introduced earlier this year.

• Qualcomm introduced a new Snapdragon DSP to deliver boosted AI and machine learning functions to people using mobile devices.
• Then, in February 2024, a new DEP chip for advanced audio processing was designed for consumer electronics.
• Texas Instruments introduced a new DSP in March 2024 designed for enhanced power efficiency and real-time processing. The DSP provides controllers, communications peripherals, and analogues for automotive and industrial applications.

These latest advances offer benefits for the B Tech EEE students, impacting their work and skills:

• Improved AI and machine learning
• Advanced audio processing
• Innovation in communication system
• Integration with IoT and 5G technologies

Harnessing Digital Signal Processing: Key Applications in Electrical Engineering

Now, let’s discuss the top four applications of the digital signal process and how they can help electrical engineering or Btech EEE.

• Image, video, and Audio Processing: DSP helps with photo, video, and audio processing. It is crucial for audio systems to compress music, suppress noise, and equalise sound. It also enhanced the audio quality. It assists in restoring images and segmenting visual data, which is essential for digital cameras, medical imaging devices, satellite systems, etc.
• Sensors and Control: DSP techniques are utilised for sensor fusion in fields like B Tech Electrical & Electronics Engineering.
• Signal Detection and Tracking: DSP also helps improve radar and sonar systems by improving target detection, classification, and tracking.
• Software-Defined Radio (SDR): DSP, combined with analogue-to-digital conversion, allows radio functionalities, such as modulation and filtering, to be performed through software rather than hardware. This offers flexibility and adaptability in an innovative communication system.

Real-World DSP Magic

In the real world, DSP created magic! Want to know how? Continuing reading.

SIRI, Google Assistant, and Alexa

New technologies like SIRI, Alex, etc., use DSP in their voice-activated assistants. According to reports, 27% of people use voice search on their smartphones. People nowadays prefer voice search more as it loads information 25% faster than search results.

The assistants in these kinds of devices record phases as sounds and then encode them into electrical signals, in which DSP plays a key role by applying DSP algorithms to match speech patterns. Doesn’t it look like magic?

Wired/Wireless Headphones with Active Noise Cancellation

The noise cancellation technology in your headphones or AirPods is another example of magic created by DSP. Who doesn’t like the noise-cancellation feature in their headphone? Music lovers nowadays love this feature.

According to reports, the global noise-cancelling headphones market was valued at $13.1 billion in 2021 and is predicted to reach $45.4 billion by 20231. To cancel out the noise, DSP recreates it by making waves on your headphones.

Let’s Wrap Up

As we explore the diverse realm of digital signal processing, it becomes clear that. Harnessing this technological innovation can be helpful for the future. DSP’s real-time capabilities and integration can make it an invaluable, meaningful tool for extracting valuable insights.

DSP helps shape engineering’s future by improving various domains' data analysis and system performance. It also enhances data transmission and communication reliability. Regarding the most important and emerging technology, artificial intelligence, DSP drives machine learning and AI innovations.

It can be concluded that DSP can process and interpret complex information and data, which is critical in developing competitive solutions and driving processes in B Tech Electrical & Electronics Engineering.

In this blog, we have discussed the processing of digital signals and their applications in electrical engineering. If you also wish to learn about DSP and its applications in detail, you can enrol at Manipal University Jaipur.