[{"data":1,"prerenderedAt":103},["ShallowReactive",2],{"glossary-en-digital-filters":3},{"id":4,"title":5,"body":6,"description":89,"extension":90,"meta":91,"navigation":98,"path":99,"seo":100,"stem":101,"__hash__":102},"en_glossary/en/glossary/digital-filters.md","What are Digital Filters? (Moving Average, Butterworth, Kalman)",{"type":7,"value":8,"toc":81},"minimark",[9,14,18,23,28,36,56,60,63,67,70],[10,11,13],"h2",{"id":12},"what-are-digital-filters","What are Digital Filters?",[15,16,17],"p",{},"Digital filters are mathematical algorithms used to remove unwanted components (noise, interference) from a signal after it has been digitized (post-ADC).",[19,20,22],"h3",{"id":21},"common-filter-types","Common Filter Types",[24,25,27],"h4",{"id":26},"_1-moving-average","1. Moving Average",[15,29,30,31,35],{},"The simplest and most common filter. It takes the average of the last ",[32,33,34],"code",{},"N"," measurements.",[37,38,39,47],"ul",{},[40,41,42,46],"li",{},[43,44,45],"strong",{},"Pro",": Excellent at suppressing random noise (white noise).",[40,48,49,52,53,55],{},[43,50,51],{},"Con",": As ",[32,54,34],{}," increases, the system's response time slows down. It creates lag in fast-changing signals.",[24,57,59],{"id":58},"_2-butterworth-low-pass","2. Butterworth (Low Pass)",[15,61,62],{},"Used to cut off all vibrations above a certain frequency. Since its frequency response is \"flat\", it cleans high-frequency interference without distorting the signal's original character.",[24,64,66],{"id":65},"_3-kalman-filter","3. Kalman Filter",[15,68,69],{},"It doesn't just look at the current measurement; it predicts \"what the next value should be\" based on the system's physical model. It finds the most accurate result by weighting the difference between the measurement and the prediction.",[15,71,72,73,80],{},"Amazeng ",[43,74,75],{},[76,77,79],"a",{"href":78},"/en/products/gdt-digital-transmitter","GDT and ZMA Series"," feature multi-stage adaptive digital filters adjustable by the user.",{"title":82,"searchDepth":83,"depth":83,"links":84},"",2,[85],{"id":12,"depth":83,"text":13,"children":86},[87],{"id":21,"depth":88,"text":22},3,"Digital signal processing techniques used to clean noisy signals and their applications.","md",{"tags":92},[93,94,95,96,97],"Digital Filter","Moving Average","Butterworth","Signal Processing","DSP",true,"/en/glossary/digital-filters",{"title":5,"description":89},"en/glossary/digital-filters","q6q2ZA1x2z2Tz0zP6Qdwnh5vG-SMfT8IkMo8lqKLnOQ",1778229654848]