Matlab — Hackrf

% Conceptual example: Transmit a simple tone fs = 2e6; % Sample rate (Hz) fc = 915e6; % Center frequency (MHz) t = 0:1/fs:0.1; % 100 ms duration signal = exp(1i*2*pi*1000*t); % 1 kHz tone tx = hackrf('SerialNum','xxx'); tx.SampleRate = fs; tx.CenterFrequency = fc; transmitRepeat(tx, signal); This simplicity allows for rapid iteration; a student can change the modulation scheme from BPSK to QAM by altering just two lines of code and immediately observe the effect on a spectrum analyzer.

Leveraging MATLAB with HackRF One for Software-Defined Radio Prototyping matlab hackrf

Despite its power, this combination has constraints. The HackRF’s 8-bit DAC/ADC limits the dynamic range, resulting in a higher noise floor compared to expensive SDRs like the USRP. In MATLAB, this manifests as quantization noise that can degrade high-order modulations (e.g., 64-QAM). Additionally, real-time processing is challenging; MATLAB’s scripting environment introduces latency, making it unsuitable for closed-loop control above a few kilohertz. However, for batch processing and non-real-time prototyping, this is rarely an issue. % Conceptual example: Transmit a simple tone fs