Iron-based life form descended from T-72
r1 = {
const lut = [[1,1], [-1,1], [-1,-1], [1,-1]].map(cplx => cplx.map(val => val * Math.sqrt(2) / 2));
const a = Array(500).fill().map(() => lut[(4 * Math.random()) |0]);
const b = a
.map(cplx => addNoise(cplx, noise))
.map(cplx => cmul(cplx, channel));
const c = mmse(b, [1, 0]);
return [{data: b, name: 'received'}, {data: c, name: 'equalized'}, {data: a, name: 'target'}];
}
r2 = {
let f64buf = new Float64Array(mod.memory.buffer);
const nPoints = 512;
const nDoubles = 2 * nPoints;
const srcStart = 0;
const dstStart = nDoubles;
const eqStart = nDoubles * 2;
fill_qpsk_random(f64buf, srcStart, nDoubles);
bufAddNoise(f64buf, srcStart, nDoubles, noise);
f64buf[eqStart] = 1.0; // Initial EQ
mod.cmul_vector(8 * srcStart, 8 * srcStart, channel[0], channel[1], nPoints);
mod.mmse_time_vector(8 * srcStart, 8 * dstStart, 8 * eqStart, nPoints);
return [{data: f64buf.slice(0, dstStart)}, {data: f64buf.slice(dstStart, eqStart)}];
}
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
